ClassID:

119150

C21D2211/009 - CPC Classification

Classification description:

Microstructure comprising significant phases Pearlite

Recent Application in this class:
#1
20260146311
2026-05-28

STEEL PLATE AND METHOD FOR MANUFACTURING SAME

#2
20260146310
2026-05-28

HOT-ROLLED STEEL SHEET, ELECTRIC RESISTANCE WELDED STEEL PIPE AND RECTANGULAR STEEL PIPE, AND LINE PIPE AND BUILDING STRUCTURE

#3
20260139708
2026-05-21

METHOD FOR PRODUCING A ROLLING BEARING COMPONENT

#4
20260125784
2026-05-07

HOT-ROLLED STEEL SHEET

#5
20260117801
2026-04-30

DUST-PROOF AND VIBRATION-PROOF COVER AND METHOD OF MANUFACTURING CONNECTING ELEMENT THEREFOR

#6
20260117353
2026-04-30

STEEL COMPOSITION, MANUFACTURING METHOD, STEEL ARTICLE AND USES HEREOF

#7
20260098326
2026-04-09

LOW-ALLOY STEEL, PLATE AND WELDED PIPE RESISTANT TO CARBON DIOXIDE AND MICROORGANISM CORROSION, AND MANUFACTURING METHOD THEREFOR

#8
20260098317
2026-04-09

PLATED STEEL SHEET FOR HOT PRESS FORMING HAVING EXCELLENT IMPACT PROPERTIES AFTER HOT PRESS FORMING, HOT PRESS FORMED MEMBER, AND MANUFACTURING METHODS THEREOF

#9
20260092346
2026-04-02

HIGH STRENGTH HOT ROLLED STEEL SHEET

#10
20260085393
2026-03-26

HOT-ROLLED STEEL SHEET

#11
20260085392
2026-03-26

HOT-ROLLED STEEL SHEET

#12
20260062779
2026-03-05

HOT-ROLLED AND COATED STEEL SHEET FOR HOT-STAMPING, HOT-STAMPED COATED STEEL PART AND METHODS FOR MANUFACTURING THE SAME

#13
20260062778
2026-03-05

HOT-ROLLED AND COATED STEEL SHEET FOR HOT-STAMPING, HOT-STAMPED COATED STEEL PART AND METHODS FOR MANUFACTURING THE SAME

#14
20260049382
2026-02-19

STEEL SHEET

#15
20260022442
2026-01-22

HOT-ROLLED STEEL SHEET

#16
20260009112
2026-01-08

STEEL FOR HOT FORMING, HOT-FORMED MEMBER, AND MANUFACTURING METHODS THEREFOR

#17
20260009098
2026-01-08

Steel Composition for Expandable Tubular Articles, Expandable Tubular Article Having This Steel Composition, Manufacturing Method Thereof and Use Thereof

#18
20250376747
2025-12-11

EXTREMELY THICK STEEL MATERIAL FOR FLANGE HAVING EXCELLENT STRENGTH AND LOW TEMPERATURE IMPACT TOUGHNESS, AND MANUFACTURING METHOD FOR SAME

#19
20250376746
2025-12-11

ULTRAHIGH HOLE EXPANSION STEEL AND METHOD FOR MANUFACTURING THEREFOR

#20
20250369080
2025-12-04

METHOD OF FORMING LOW-CARBON, HIGH TOUGHNESS, STEEL PLATES FOR RAILROAD TANK CARS

#21
20250369065
2025-12-04

HIGH-STRENGTH STEEL SHEET AND METHOD FOR PRODUCING THE SAME

#22
20250360557
2025-11-27

SYSTEMS AND METHODS FOR IMPROVING IRON-BASED CAMSHAFT FATIGUE LIFE

#23
20250354239
2025-11-20

METHOD FOR FABRICATING STEEL SHEET FOR PRESS HARDENING, AND PARTS OBTAINED BY THIS METHOD

#24
20250320590
2025-10-16

HIGH-YIELD RATIO HIGH-STRENGTH STEEL PLATE HAVING EXCELLENT IMPACT RESISTANCE AFTER COLD FORMING AND MANUFACTURING METHOD THEREOF

#25
20250320587
2025-10-16

NON-QUENCHED AND NON-TEMPERED STEEL WIRE ROD FOR HOT FORGING WITH EXCELLENT MACHINABILITY AND IMPACT TOUGHNESS AND METHOD FOR MANUFACTURING SAME

#26
20250313914
2025-10-09

SLAB FOR HIGH-STRENGTH STEEL SHEET AND COOLING METHOD THEREOF, PRODUCING METHOD OF HIGH-STRENGTH HOT-ROLLED STEEL SHEET, PRODUCING METHOD OF HIGH-STRENGTH COLD-ROLLED STEEL SHEET, AND PRODUCING METHOD OF HIGH-STRENGTH PLATED STEEL SHEET

#27
20250305103
2025-10-02

STEEL FOR INDUCTION HARDENING

#28
20250305100
2025-10-02

STEEL SHEET

#29
20250305081
2025-10-02

PLATED STEEL SHEET FOR HOT PRESS FORMING HAVING EXCELLENT IMPACT PROPERTY, HOT PRESS FORMED PART, AND MANUFACTURING METHOD THEREOF

#30
20250296141
2025-09-25

CONTINUOUSLY CAST SLAB AND METHOD FOR PRODUCING THE SAME

#31
20250243575
2025-07-31

High toughness press-hardened steel part and method of manufacturing the same

#32
20250243573
2025-07-31

High toughness press-hardened steel part and method of manufacturing the same

#33
20250230529
2025-07-17

NON-QUENCHED AND TEMPERED STEEL ROD WIRE FOR HOT FORGING WITH IMPROVED MACHINABILITY AND TOUGHNESS AND METHOD FOR MANUFACTURING SAME

#34
20250230515
2025-07-17

HOT-ROLLED STEEL SHEET

#35
20250215539
2025-07-03

STEEL TUBE, VEHICLE COMPONENT, METHOD FOR PRODUCING STEEL TUBE, AND METHOD FOR PRODUCING VEHICLE COMPONENT

#36
20250197981
2025-06-19

HOT ROLLED STEEL SHEET HAVING EXCELLENT COLD BENDABILITY AFTER HEATING AND QUENCHING-TEMPERING HEAT TREATMENT, STEEL PIPE, MEMBER AND MANUFACTURING METHODS THEREFOR

#37
20250137086
2025-05-01

STEEL MATERIAL FOR HOT FORMING, HOT FORMED PART, AND METHOD FOR MANUFACTURING THEREOF

#38
20250129446
2025-04-24

ULTRA-HIGH-STRENGTH REINFORCING BAR AND MANUFACTURING METHOD THEREOF

#39
20250109467
2025-04-03

HOT-ROLLED STEEL SHEET

#40
20250101558
2025-03-27

HIGH-STRENGTH PIPE RESISTANT TO SODIUM HYDROXIDE CORROSION AND MANUFACTURING METHOD THEREFOR

#41
20250101554
2025-03-27

ELECTRIC RESISTANCE WELDED STEEL PIPE FOR AN AUTOMOTIVE PART, AND METHOD OF PRODUCING AUTOMOTIVE PART

#42
20250092495
2025-03-20

STEEL WIRE

#43
20250084516
2025-03-13

STEEL REINFORCEMENT AND METHOD FOR MANUFACTURING THE SAME

#44
20250066890
2025-02-27

OZONE CORROSION RESISTANT HIGH-STRENGTH TUBE AND MANUFACTURING METHOD THEREFOR

#45
20250066887
2025-02-27

STEEL SHEET FOR HOT-STAMPING, METHOD FOR MANUFACTURING STEEL SHEET FOR HOT-STAMPING, AND HOT-STAMPED FORMED BODY

#46
20250059634
2025-02-20

GREY CAST IRON, IN PARTICULAR FOR DISC BRAKE COMPONENTS

#47
20250051892
2025-02-13

HOT-ROLLED STEEL FOR HYPER TUBE AND MANUFACTURING METHOD THEREFOR

#48
20250043378
2025-02-06

HIGH-STRENGTH STEEL WITH EXCELLENT NEUTRAL AQUEOUS MEDIUM CORROSION RESISTANCE AS WELL AS PREPARATION METHOD AND APPLICATION THEREOF

#49
20250043377
2025-02-06

CARBIDE-FREE TEMPERED MARTENSITIC STEELS AND PREPARATION METHODS THEREOF

#50
20250043376
2025-02-06

METHODS FOR MANUFACTURING WIRE ROD FOR COLD FORGING AND SCREW PART, HAVING EXCELLENT DRILLING CHARACTERISTICS

#51
20250034672
2025-01-30

GRAPHITE STEEL WIRE ROD AND GRAPHITE STEEL FOR TV PEM NUT PARTS, METHODS FOR MANUFACTURING AND CUTTING THEREFOR

#52
20250019811
2025-01-16

COMPONENT MADE OF B-ZR ALLOYED STEEL

#53
20250019808
2025-01-16

HOT-ROLLED STEEL SHEET

#54
20250019790
2025-01-16

CALCIUM-CONTAINING GRAPHITE STEEL HAVING EXCELLENT MACHINABILITY, AND MANUFACTURING METHOD THEREFOR

#55
20250012382
2025-01-09

STEEL PIPE FOR OIL CYLINDER AND MANUFACTURING METHOD THEREFOR

#56
20250003040
2025-01-02

HOT-ROLLED STEEL FOR ENAMELING HAVING ENAMELING AND FIRING STRENGTHENING PROPERTY, AND MANUFACTURING METHOD THEREFOR

#57
20250003023
2025-01-02

NON-STAMPED PREALLOYED STEEL COIL, SHEET OR BLANK, PRESS HARDENED COATED MART AND RELATED METHOD

#58
20240417831
2024-12-19

ALLOYED STEEL

#59
20240383506
2024-11-21

HOT-ROLLED STEEL SHEET FOR HYPER TUBE AND MANUFACTURING METHOD THEREFOR

#60
20240376578
2024-11-14

STEEL SHEET FOR HOT PRESSING AND METHOD FOR PRODUCING THE SAME, AND HOT-PRESSED MEMBER AND METHOD FOR PRODUCING THE SAME

#61
20240360533
2024-10-31

STEEL HAVING EXCELLENT HYDROGEN-INDUCED CRACKING RESISTANCE AND LOW-TEMPERATURE IMPACT TOUGHNESS, AND METHOD FOR MANUFACTURING SAME

#62
20240352563
2024-10-24

STEEL MATERIAL HAVING HIGH STRENGTH AND EXCELLENT IMPACT TOUGHNESS, AND MANUFACTURING METHOD THEREFOR

#63
20240337003
2024-10-10

HIGH-STRENGTH STEEL HAVING HIGH YIELD RATIO AND EXCELLENT DURABILITY, AND METHOD FOR MANUFACTURING SAME

#64
20240337000
2024-10-10

Method for Producing a Cold-Rolled Flat Steel Product Having a Bainitic Basic Structure and Cold-Rolled Flat Steel Product Having a Bainitic Basic Structure

#65
20240336988
2024-10-10

PLASTIC MOLD STEEL PLATE AND METHOD FOR PRODUCING SAME

#66
20240327965
2024-10-03

STEEL SHEET AND METHOD FOR PRODUCING SAME

#67
20240327964
2024-10-03

STEEL PLATE FOR EVAPORATOR OF ADVANCED NUCLEAR POWER UNIT AND MANUFACTURING METHOD THEREOF

#68
20240327962
2024-10-03

HOT DIP GALVANIZED STEEL SHEET AND METHOD FOR PRODUCING SAME

#69
20240309481
2024-09-19

HOT-ROLLED STEEL PLATE FOR LOW-COST HIGH TEMPERATURE ENAMELING, AND MANUFACTURING METHOD THEEFOR

#70
20240301537
2024-09-12

HOT-ROLLED STEEL SHEET

#71
20240301526
2024-09-12

PLATED STEEL SHEET FOR HOT PRESS FORMING HAVING EXCELLENT IMPACT PROPERTY, HOT PRESS FORMED PART, AND MANUFACTURING METHOD THEREOF

#72
20240287663
2024-08-29

HIGH STRENGTH STEEL SHEET

#73
20240279762
2024-08-22

METHOD FOR PRODUCING A ROLLING ELEMENT BEARING COMPONENT, ROLLING ELEMENT BEARING COMPONENT, AND ROLLING ELEMENT BEARING

#74
20240263286
2024-08-08

WIRE ROD AND STEEL WIRE FOR SPRING, SPRING WITH IMPROVED STRENGTH AND FATIGUE LIMIT, AND METHOD FOR MANUFACTURING SAME

#75
20240254610
2024-08-01

Hot-Formed Steel Part and Manufacturing Method

#76
20240254588
2024-08-01

WIRE ROD HAVING EXCELLENT DRAWABILITY, AND MANUFACTURING METHOD THEREFOR

#77
20240254582
2024-08-01

HOT-ROLLED STEEL PLATE HAVING EXCELLENT IMPACT TOUGHNESS OF WELDED ZONE AND METHOD FOR MANUFACTURING SAME

#78
20240253099
2024-08-01

METHOD FOR ROLLING HIGH-TOUGHNESS HIGH-STRENGTH LOW-ALLOY STEEL

#79
20240240298
2024-07-18

HIGH-STRENGTH ALLOYED HOT-DIP GALVANIZED STEEL SHEET AND MANUFACTURING METHOD THEREFOR

#80
20240218478
2024-07-04

Gradient-structured ultra-fine bainitic low-alloy rail steel and preparation method thereof

#81
20240209481
2024-06-27

STEEL WIRE AND SPRING

#82
20240209467
2024-06-27

ULTRA-HIGH-STRENGTH HOT-ROLLED STEEL SHEET, STEEL PIPE, MEMBER, AND MANUFACTURING METHODS THEREFOR

#83
20240191319
2024-06-13

STEEL STRIP MADE OF A HIGH-STRENGTH MULTIPHASE STEEL AND PROCESS FOR PRODUCING SUCH A STEEL STRIP

#84
20240183017
2024-06-06

STEEL SHEET FOR HOT STAMPING AND HOT-STAMPING FORMED BODY

#85
20240182997
2024-06-06

HOT DIP GALVANIZED STEEL SHEET AND METHOD FOR PRODUCING SAME

#86
20240167133
2024-05-23

HOT-ROLLED STEEL SHEET AND METHOD FOR MANUFACTURING SAME

#87
20240167115
2024-05-23

FORMING METHOD, HEAT TREATMENT SYSTEM, AND FORMED PRODUCT

#88
20240167114
2024-05-23

HOT-ROLLED STEEL SHEET AND METHOD FOR MANUFACTURING THE SAME

#89
20240158882
2024-05-16

STEEL SHEET AND METHOD OF PRODUCTION OF SAME

#90
20240150863
2024-05-09

STEEL SHEET AND METHOD OF PRODUCTION OF SAME

#91
20240150861
2024-05-09

COLD-WORKABLE MECHANICAL STRUCTURAL STEEL, AND METHOD FOR MANUFACTURING SAME

#92
20240141467
2024-05-02

STEEL SHEET AND WELDED JOINT

#93
20240141451
2024-05-02

HOT-STRETCH-REDUCED ELECTRIC RESISTANCE WELDED PIPE

#94
20240141450
2024-05-02

HIGH-STRENGTH HOT-ROLLED FLAT STEEL PRODUCT HAVING HIGH LOCAL COLD FORMABILITY AND A METHOD OF PRODUCING SUCH A FLAT STEEL PRODUCT

#95
20240117459
2024-04-11

STEEL WIRE WITH IMPROVED DRAWABILITY, AND MANUFACTURING METHOD THEREFOR

#96
20240110267
2024-04-04

HIGH-STRENGTH STEEL MATERIAL HAVING EXCELLENT LOW-TEMPERATURE STRAIN AGAIN IMPACT PROPERTIES AND METHOD FOR MANUFACTURING SAME

#97
20240076766
2024-03-07

QT HEAT TREATED HIGH CARBON HOT ROLLED STEEL SHEET, HIGH CARBON COLD ROLLED STEEL SHEET, QT HEAT TREATED HIGH CARBON COLD ROLLED STEEL SHEET, AND MANUFACTURING METHODS THEREOF

#98
20240060531
2024-02-22

METHOD FOR PRODUCING A ROLLING BEARING COMPONENT

#99
20240052470
2024-02-15

Non-quenched and Tempered Round Steel with High Strength, High Toughness and Easy Cutting and Manufacturing Method Therefor

#100
20240052467
2024-02-15

HIGH-STRENGTH WIRE ROD FOR COLD HEADING WITH SUPERIOR HEAT TREATMENT CHARACTERISTICS AND RESISTANCE OF HYDROGEN-DELAYED FRACTURE CHARACTERISTICS, HEAT-TREATED COMPONENT, AND METHOD FOR MANUFACTURING SAME

#101
20240052453
2024-02-15

WIRE ROD AND STEEL WIRE FOR SPRING, SPRING WITH IMPROVED FATIGUE RESISTANCE AND NITRIDING PROPERTIES, AND METHODS FOR MANUFACTURING SAME

#102
20240043957
2024-02-08

FORMING METHOD, HEAT TREATMENT SYSTEM, AND FORMED PRODUCT

#103
20240043952
2024-02-08

Plated steel sheet having excellent strength, formability and surface property and method for manufacturing same

#104
20240043949
2024-02-08

WIRE ROD FOR CONCRETE REINFORCING STEEL FIBER, STEEL FIBER, AND MANUFACTURING METHOD THEREFOR

#105
20240035531
2024-02-01

LIGHTWEIGHT BRAKE DISC WITH MAXIMIZED HEAT DISSIPATION PERFORMANCE AND MANUFACTURING METHOD THEREOF

#106
20240035106
2024-02-01

HIGH STRENGTH THIN STEEL MATERIAL FOR API HAVING EXCELLENT RESISTANCE TO DEFORMATION AND METHOD OF MANUFACTURING SAME

#107
20240026999
2024-01-25

ELECTRIC RESISTANCE WELDED STEEL PIPE AND METHOD FOR MANUFACTURING THE SAME

#108
20240026478
2024-01-25

EXTREMELY THICK STEEL PLATE FOR STEAM DRUM HAVING EXCELLENT SURFACE QUALITY AND LAMELLAR TEAR RESISTANCE, AND MANUFACTURING METHOD FOR SAME

#109
20240018619
2024-01-18

HOT-ROLLED STEEL SHEET FOR HYPER TUBE AND MANUFACTURING METHOD THEREFOR

#110
20240018618
2024-01-18

HOT-ROLLED STEEL SHEET FOR HYPER TRAIN TUBE, AND MANUFACTURING METHOD FOR SAME

#111
20240018616
2024-01-18

LOW-TEMPERATURE-RESISTANT AND CORROSION-RESISTANT CARGO OIL TANK STEEL SUITABLE FOR HIGH-HEAT-INPUT WELDING AND MANUFACTURING METHOD THEREFOR

#112
20240011118
2024-01-11

HIGH STRENGTH STEEL SHEET HAVING EXCELLENT WORKABILITY AND METHOD FOR MANUFACTURING SAME

#113
20240011114
2024-01-11

Steel sheet and method for producing same

#114
20240011113
2024-01-11

STEEL SHEET FOR HOT STAMPING, METHOD FOR MANUFACTURING THE SAME, HOT STAMPED COMPONENT, AND METHOD FOR MANUFACTURING THE SAME

#115
20240002966
2024-01-04

STEEL FOR RAILS AND A METHOD OF MANUFACTURING OF A RAIL THEREOF

#116
20230416886
2023-12-28

HOT-ROLLED STEEL SHEET

#117
20230416882
2023-12-28

TIRE CORD STEEL WITH HIGH STRENGTH AND LOW WIRE BREAKAGE RATE, AND ROLLING METHOD AND USE THEREOF

#118
20230416861
2023-12-28

HOT ROLLED STEEL HAVING LOW COMPRESSIVE STRENGTH LOSS AFTER BEING PROCESSED INTO STEEL PIPE, AND MANUFACTURING METHOD THEREFOR

#119
20230416860
2023-12-28

HIGH YIELD RATIO AND HIGH STRENGTH STEEL SHEET HAVING EXCELLENT THERMAL STABILITY, AND MANUFACTURING METHOD THEREFOR

#120
20230416859
2023-12-28

STEEL SHEET AND METHOD OF MANUFACTURING THE SAME

#121
20230416855
2023-12-28

HIGH-STRENGTH HOT-ROLLED STEEL SHEET, HOT-ROLLED PLATED STEEL SHEET, AND MANUFACTURING METHODS THEREFOR

#122
20230399712
2023-12-14

Steel sheet and method for producing same

#123
20230392229
2023-12-07

HIGH-STRENGTH STEEL STRIP HAVING EXCELLENT WORKABILITY, AND METHOD FOR MANUFACTURING SAME

#124
20230349022
2023-11-02

Steel sheet

#125
20230349021
2023-11-02

HIGH-STRENGTH THICK HOT-ROLLED STEEL SHEET HAVING EXCELLENT ELONGATION AND METHOD FOR MANUFACTURING SAME

#126
20230349017
2023-11-02

HOT-ROLLED STEEL SHEET

#127
20230323496
2023-10-12

HOT-ROLLED STEEL SHEET

#128
20230304119
2023-09-28

STEEL SHEET AND METHOD FOR MANUFACTURING SAME

#129
20230295787
2023-09-21

STEEL PLATE FOR TORSION BEAM AND MANUFACTURING METHOD THEREFOR, AND TORSION BEAM AND MANUFACTURING METHOD THEREFOR

#130
20230295783
2023-09-21

HOT-ROLLED STEEL SHEET

#131
20230295761
2023-09-21

STEEL SHEET AND STEEL SHEET MANUFACTURING METHOD

#132
20230287545
2023-09-14

High strength steel sheet having excellent high-temperature elongation characteristic, warm-pressed member, and manufacturing methods for the same

#133
20230287535
2023-09-14

Plated steel sheet for hot press forming having excellent impact property, hot press formed part, and manufacturing method thereof

#134
20230257845
2023-08-17

HOT-ROLLED STEEL SHEET

#135
20230250505
2023-08-10

RAIL AND METHOD FOR PRODUCING THE SAME

#136
20230212704
2023-07-06

Steel Material, for Pressure Vessel, Showing Excellent Hydrogen-Induced Cracking Resistance and Method for Preparing Same

#137
20230183834
2023-06-15

STEEL SHEET AND METHOD FOR PRODUCING SAME

#138
20230183833
2023-06-15

STEEL SHEET AND METHOD FOR PRODUCING SAME

#139
20230160033
2023-05-25

Galvannealed steel sheet coated with an iron and nickel layer topped by a zinc-based layer

#140
20230140766
2023-05-04

HOT-ROLLED STEEL SHEET AND MANUFACTURING METHOD THEREOF

#141
20230118113
2023-04-20

STEEL

#142
20230111519
2023-04-13

Steel sheet for hot press and aluminum coated blank manufactured using the same

#143
20230087014
2023-03-23

STEEL SHEET

#144
20230071728
2023-03-09

FORGED GRINDING BALLS FOR SEMI-AUTOGENOUS GRINDER

#145
20230055479
2023-02-23

HOT-ROLLED STEEL SHEET

#146
20230040633
2023-02-09

STEEL WIRE ROD HAVING EXCELLENT SPHEROIDIZING HEAT TREATMENT PROPERTIES, AND METHOD FOR PRODUCING SAME

#147
20230029319
2023-01-26

HOT ROLLED STEEL SHEET

#148
20230029137
2023-01-26

HIGH-STRENGTH WIRE ROD HAVING HIGH HYDROGEN EMBRITTLEMENT RESISTANCE FOR COLD HEADING, AND METHOD FOR MANUFACTURING THE SAME

#149
20230027056
2023-01-26

Steel wire rod having excellent spheroidizing heat treatment properties and method of manufacturing same

#150
20230026210
2023-01-26

STEEL MATERIAL HAVING EXCELLENT SULFIDE STRESS CORROSION CRACKING RESISTANCE AND METHOD OF MANUFACTURING SAME

#151
20230026116
2023-01-26

Steel sheet for a structure with excellent seawater corrosion resistance and method of manufacturing same

#152
20230024943
2023-01-26

STEEL MATERIAL FOR VACUUM TUBE AND METHOD OF MANUFACTURING SAME

#153
20230020467
2023-01-19

WIRE ROD AND COMPONENT, FOR COLD FORGING, EACH HAVING EXCELLENT DELAYED FRACTURE RESISTANCE CHARACTERISTICS, AND MANUFACTURING METHODS THEREFOR

#154
20230020381
2023-01-19

NON-HEAT TREATED WIRE ROD HAVING EXCELLENT DRAWABILITY AND IMPACT TOUGHNESS AND METHOD FOR MANUFACTURING SAME

#155
20230020054
2023-01-19

BEARING WIRE ROD AND MANUFACTURING METHOD THEREFOR

#156
20230002873
2023-01-05

STEEL FOR HOT FORMING, HOT-FORMED MEMBER, AND MANUFACTURING METHODS THEREFOR

#157
20230002871
2023-01-05

HIGH-STRENGTH STEEL HAVING SUPERIOR DUCTILITY, AND MANUFACTURING METHOD THEREFOR

#158
20220403487
2022-12-22

FORGED PART OF STEEL AND A METHOD OF MANUFACTURING THEREOF

#159
20220403479
2022-12-22

NORMALIZING HEAT-TREATED STEEL SHEET HAVING GOOD LOW-TEMPERATURE IMPACT TOUGHNESS AND METHOD FOR MANUFACTURING SAME

#160
20220389548
2022-12-08

High-strength steel having high yield ratio and excellent durability, and method for manufacturing same

#161
20220364194
2022-11-17

ULTRA-HIGH-STRENGTH REINFORCING BAR AND MANUFACTURING METHOD THEREOF

#162
20220349035
2022-11-03

STEEL FOR ALLOY STRUCTURE AND MANUFACTURING METHOD THEREFOR

#163
20220341012
2022-10-27

Hot-rolled steel sheet having excellent impact resistance, steel pipe, member, and manufacturing methods therefor

#164
20220340994
2022-10-27

HIGH-STRENGTH THIN-GAUGE CHECKERED STEEL PLATE/STRIP AND MANUFACTURING METHOD THEREFOR

#165
20220340993
2022-10-27

HOT-ROLLED STEEL PLATE/STRIP FOR SULFURIC ACID DEW POINT CORROSION RESISTANCE AND MANUFACTURING METHOD THEREFOR

#166
20220325390
2022-10-13

Method for controlling amount of silicon added to ductile cast iron, method for casting ductile cast iron, and cast product

#167
20220325370
2022-10-13

Hot stamped component, precoated steel sheet used for hot stamping and hot stamping process

#168
20220316039
2022-10-06

STEEL REINFORCEMENT AND METHOD FOR MANUFACTURING THE SAME

#169
20220307101
2022-09-29

Rail and manufacturing method therefor

#170
20220282353
2022-09-08

HIGH STRENGTH STEEL SHEET, HIGH STRENGTH MEMBER, AND METHODS FOR MANUFACTURING THE SAME

#171
20220282351
2022-09-08

Steel sheet

#172
20220275469
2022-09-01

HIGH STRENGTH STEEL SHEET, HIGH STRENGTH MEMBER, AND METHODS FOR MANUFACTURING THE SAME

#173
20220251691
2022-08-11

CAST IRON, IN PARTICULAR FOR COMPONENTS OF DISC BRAKES

#174
20220251675
2022-08-11

WIRE ROD AND STEEL WIRE FOR HIGH STRENGTH SPRING, AND MANUFACTURING METHOD THEREFOR

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Cold rolled steel sheet

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2022-07-28

NON-HEAT TREATED WIRE ROD WITH EXCELLENT WIRE DRAWABILITY AND IMPACT TOUGHNESS AND MANUFACTURING METHOD THEREFOR

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HIGH-STRENGTH STEEL BAR AND PRODUCTION METHOD THEREOF

#178
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Spheroidal graphite cast iron and method of producing spheroidal graphite cast iron, and vehicle undercarriage parts

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Spring steel wire

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HIGH-STRENGTH STEEL SHEET AND METHOD FOR MANUFACTURING SAME

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ELECTRIC RESISTANCE-WELDED STEEL TUBE FOR HOLLOW STABILIZER, HOLLOW STABILIZER, AND MANUFACTURING METHODS OF SAME

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Steel shaft component

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HIGH-CARBON HOT-ROLLED STEEL SHEET AND METHOD FOR MANUFACTURING THE SAME

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Plated steel sheet for hot press forming having excellent impact property, hot press formed part, and manufacturing method thereof

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Steel Alloy, Use of Such a Steel Alloy, and Component

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Steel sheet and production method for same

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Hot dip galvanized steel sheet and method for producing same

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Rail

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Method for optimizing microstructure of rail welded joint

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Hot stamped component, precoated steel sheet used for hot stamping and hot stamping process

#191
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2022-04-21

Steel sheet and method for producing same

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Hot dip galvanized steel sheet and method for producing same

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MECHANICAL STRUCTURE STEEL FOR COLD-WORKING AND MANUFACTURING METHOD THEREFOR

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High-carbon hot-rolled steel sheet and method for manufacturing the same

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Hot-rolled steel sheet and method for manufacturing same

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High-strength steel product and method of manufacturing the same

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HIGH-STRENGTH STEEL SHEET AND METHOD FOR PRODUCING THE SAME

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Steel sheet

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Hot dip galvanized steel sheet and method for producing same

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STEEL WIRE

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Hot dip galvanized steel sheet and method for producing same

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High-strength galvanized steel sheet and method for manufacturing the same

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PRESSURE VESSEL STEEL HAVING EXCELLENT HYDROGEN INDUCED CRACKING RESISTANCE, AND MANUFACTURING METHOD THEREFOR

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METHOD OF MAKING A TEE RAIL HAVING A HIGH STRENGTH BASE

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HOT ROLLED STEEL SHEET AND METHOD FOR PRODUCING SAME

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Wire rod of which softening heat treatment can be omitted, and manufacturing method therefor

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Railway wheel

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STEEL SHEET, METHOD FOR MANUFACTURING SAME AND PLATED STEEL SHEET

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RAILROAD TANK CARS FORMED OF LOW-CARBON, HIGH TOUGHNESS, STEEL PLATES

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PLATED STEEL SHEET FOR HOT PRESS FORMING HAVING EXCELLENT IMPACT PROPERTIES AFTER HOT PRESS FORMING, HOT PRESS FORMED MEMBER, AND MANUFACTURING METHODS THEREOF

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High strength hot rolled steel sheet having excellent elongation and method for manufacturing the same

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STEEL MATERIAL HAVING EXCELLENT HYDROGEN INDUCED CRACKING RESISTANCE, AND MANUFACTURING METHOD THEREFOR

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Gradient steel material having surface layer with ferrite and inner layer with ferrite + pearlite and manufacturing method

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2021-12-30

Steel wire rod enabling omission of softening heat treatment and method of manufacturing same

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Hot-rolled steel sheet

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HOT ROLLED STEEL AND A METHOD OF MANUFACTURING THEREOF

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Hot-press molding method and hot-press molded product

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Wire rod for cold heading, processed product using same, and manufacturing methods therefor

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HIGH-TENSILE STEEL CONTAINING MANGANESE, USE OF SAID STEEL FOR FLEXIBLY-ROLLED SHEET-PRODUCTS, AND PRODUCTION METHOD AND ASSOCIATED STEEL SHEET-PRODUCT

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HOT ROLLED STEEL AND STEEL COMPONENT

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Rail

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Zinc-plated steel sheet and manufacturing method thereof

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METHOD FOR FABRICATING STEEL SHEET FOR PRESS HARDENING, AND PARTS OBTAINED BY THIS METHOD

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High-strength double-sided stainless steel clad sheet and manufacturing method therefor

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Method for producing hot-rolled steel sheet, method for producing cold-rolled full-hard steel sheet, and method for producing heat-treated sheet

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High-strength reinforcing steel and method for manufacturing same

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Copper-coated steel wire and stranded wire

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SHEET-METAL FORMED COMPONENT AND METHOD FOR THE PRODUCTION OF THE SHEET-METAL FORMED COMPONENT

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Zinc-plated steel sheet and manufacturing method thereof

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Method for producing steel plate member

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Plated steel sheet for hot press forming having excellent impact property, hot press formed part, and manufacturing method thereof

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Steel sheet and manufacturing method of therefor

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High-strength steel sheet and high-strength galvanized steel sheet

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Rail and method for manufacturing same

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ROLLED H-SHAPE STEEL AND MANUFACTURING METHOD THEREOF

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HOT ROLLED STEEL SHEET, STEEL FORGED PART AND PRODUCTION METHOD THEREFOR

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Steel sheet and manufacturing method therefor

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2021-03-18

Wire rod for cold heading, processed product using same, and manufacturing method therefor

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Process for local hardening

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HOT-ROLLED STEEL SHEET HAVING EXCELLENT IMPACT RESISTANCE, STEEL PIPE, MEMBER, AND MANUFACTURING METHODS THEREFOR

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High-ductility high-strength steel sheet and method for producing the same

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Galvannealed steel sheet

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2021-02-04

Method for producing machine component

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Gray cast iron alloy, and internal combustion engine head

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Steel sheet and manufacturing method therefor

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Manufacturing process of press hardened parts with high productivity

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High-strength, hot-rolled flat steel product with high edge cracking resistance and, at the same time, high bake-hardening potential, and method for producing such a flat steel product

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High-strength hot-rolled plated steel sheet, and method for producing same

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Hot stamped component, precoated steel sheet used for hot stamping and hot stamping process

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Production of HIC-resistant pressure vessel grade plates using a low-carbon composition

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2020-11-26

DRAWN STEEL WIRE

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Ultra-high-strength hot-rolled steel sheet, steel pipe, member, and manufacturing methods therefor

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HIGH-STRENGTH STEEL WIRE

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Steel reinforcing bar and production method therefor

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High-strength steel having excellent low-yield-ratio characteristics, and manufacturing method therefor

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STEEL SECTION HAVING A THICKNESS OF AT LEAST 100MM AND METHOD OF MANUFACTURING THE SAME

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HIGH-STRENGTH STEEL WITH EXCELLENT TOUGHNESS OF HEAT-AFFECTED ZONE AND MANUFACTURING METHOD THEREOF

#260
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Method for the manufacture of a galvannealed steel sheet

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2020-09-10

Method for preventing cracking along the surface at the inner hole of a hollow shaft during horizontal water quenching

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HIGH STRENGTH STEELS, PROCESSES FOR MAKING SAME, AND MATERIALS RESULTING THEREFROM

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Railway wheel

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High-strength steel material having excellent low-temperature strain aging impact properties and welding heat-affected zone impact properties and method for manufacturing same

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High-strength multiphase tinned steel raw plate and manufacturing method therefor

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2020-07-23

Steel sheet

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HOT-ROLLED AND COATED STEEL SHEET FOR HOT-STAMPING, HOT-STAMPED COATED STEEL PART AND METHODS FOR MANUFACTURING THE SAME

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Steel wire and wire rod

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2020-06-25

METHOD FOR REINFORCING RAIL BY LASER AND AUXILIARY HEAT SOURCE EFFICIENT HYBRID CLADDING

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Method for the surface treatment of a steel Yankee

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Drill bit for drilling and method for manufacturing same

#272
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2020-06-11

Brake disk including decarburized layer and nitride compound layer, and method of manufacturing the same

#273
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2020-04-16

High strength hot-dip galvanized steel sheet and production method therefor

#274
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2020-03-26

Free machining and non-quenched and tempered steel and manufacturing method therefor

#275
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2020-03-26

Steel for pressure vessels having excellent resistance to hydrogen induced cracking and manufacturing method thereof

#276
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2020-03-19

HIGH-STRENGTH STEEL SHEET

#277
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2020-03-19

Plated steel sheet for hot press forming having excellent impact property, hot press formed part, and manufacturing method thereof

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2020-03-12

Canted coil spring and connector

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2020-03-05

HIGH-CARBON HOT-ROLLED STEEL SHEET HAVING EXCELLENT SURFACE QUALITY AND MANUFACTURING METHOD THEREFOR

#280
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2020-03-05

WIRE ROD

#281
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2020-02-27

WIRE ROD FOR SPRINGS WITH EXCELLENT CORROSION FATIGUE RESISTANCE, STEEL WIRE, AND MANUFACTURING METHOD THEREOF

#282
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2020-02-13

STEEL WIRE ROD AND MANUFACTURING METHOD OF STEEL WIRE ROD

#283
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2020-02-13

High-strength reinforcing steel and method for manufacturing same

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2020-02-06

Steel sheet

#285
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2020-01-30

Vermicular cast iron alloy for internal combustion engine block and head

#286
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2020-01-30

Cold rolled steel wire, method and reinforcement of flexible conduits

#287
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2020-01-30

Hot rolled steel sheet

#288
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2020-01-30

High-strength galvanized steel sheet and method for producing the same

#289
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2020-01-23

Cold-rolled steel sheet and hot-dip galvanized cold-rolled steel sheet

#290
20200024706
2020-01-23

Steel sheet

#291
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2020-01-23

Hot rolled steel sheet

#292
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2020-01-23

HOT ROLLED STEEL SHEET, STEEL FORGED PART AND PRODUCTION METHOD THEREFOR

#293
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2020-01-16

Steel sheet

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2020-01-09

Use of a Steel for an Additive Manufacturing Process, Method for Producing a Steel Component and Steel Component

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2019-12-19

HEAVY-WALL STEEL PLATE HAVING 450MPA-GRADE TENSILE STRENGTH AND EXCELLENT RESISTANCE TO HYDROGEN INDUCED CRACKING AND METHOD FOR MANUFACTURING SAME

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2019-12-05

Pressure vessel steel sheet having excellent PWHT resistance, and manufacturing method therefor

#297
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2019-11-21

Method of dynamical adjustment for manufacturing a thermally treated steel sheet

#298
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2019-11-21

MICROALLOYED STEEL COMPONENT AND MANUFACTURING METHOD THEREFOR

#299
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2019-11-14

Lead-free patenting process and equipment

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2019-11-14

High-strength corrosion-resistant composite chequered iron and manufacturing method therefor