ClassID:

118997

C21D8/005 - CPC Classification

Classification description:

Modifying the physical properties by deformation combined with, or followed by, heat treatment of ferrous alloys

Recent Application in this class:
#1
20260049384
2026-02-19

METAL PARTS WITH LOW COEFFICIENT OF THERMAL EXPANSION AND HIGH MECHANICAL STRENGTH

#2
20260028708
2026-01-29

AUSTENITIC STAINLESS ALLOY WITH SUPERIOR CORROSION RESISTANCE

#3
20260022444
2026-01-22

METHOD FOR MANUFACTURING A METAL SHEET WITH A ZNAL COATING AND WITH OPTIMIZED WIPING, CORRESPONDING METAL SHEET, PART AND VEHICLE

#4
20250376739
2025-12-11

HIGH HOLE EXPANSION STEEL AND METHOD FOR MANUFACTURING THEREFOR

#5
20250354239
2025-11-20

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

#6
20250354228
2025-11-20

Steel sheet and high strength press hardened steel part and method of manufacturing the same

#7
20250313911
2025-10-09

Steel sheet and high strength press hardened steel part having excellent bending and method of manufacturing the same

#8
20250305080
2025-10-02

PRE-COATED STEEL SHEET

#9
20250257418
2025-08-14

FATIGUE-RESISTANT LOAD-BEARING STEEL FOR WIND TURBINE MAIN SHAFT, AND MANUFACTURING METHOD AND USE THEREOF

#10
20250230530
2025-07-17

STEEL COMPONENT AND METHOD OF PRODUCING SAME

#11
20250207233
2025-06-26

HOT STAMPING ALLOY, METHOD OF MAKING HOT STAMPED PARTS WITH SUCH ALLOY, AND PARTS MADE FROM SUCH ALLOY

#12
20250137083
2025-05-01

STEEL SHEET AND HIGH STRENGTH PRESS HARDENED STEEL PART HAVING EXCELLENT BENDING AND METHOD OF MANUFACTURING THE SAME

#13
20250137082
2025-05-01

STEEL SHEET AND HIGH STRENGTH PRESS HARDENED STEEL PART HAVING EXCELLENT BENDING AND METHOD OF MANUFACTURING THE SAME

#14
20250092485
2025-03-20

HOT STAMPING COMPONENT AND MANUFACTURING METHOD THEREFOR

#15
20250092480
2025-03-20

HOT-ROLLED, LOW-TEMPERATURE-RESISTANT, H-SHAPED STEEL WITH GRADE OF YIELD STRENGTH OF 420 MPA AND PREPARATION METHOD THEREFOR

#16
20250075302
2025-03-06

STAINLESS STEEL AND MANUFACTURING METHOD THEREFOR, AND STAINLESS STEEL PRODUCT AND MANUFACTURING METHOD THEREFOR

#17
20250075282
2025-03-06

PRESS HARDENING STEEL (PHS) WELDED BLANKS WITH ENHANCED TOUGHNESS

#18
20250066869
2025-02-27

AUSTENITIC STAINLESS STEEL AND METHOD FOR PRODUCING AUSTENITIC STAINLESS STEEL

#19
20250043376
2025-02-06

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

#20
20250019785
2025-01-16

HIGH-ALUMINUM BORON-CONTAINING DIE STEEL WITH RESISTANCE TO ZINC-INDUCED HOT CORROSION FOR SEVERE PLASTIC DEFORMATION OF ZINC ALLOYS AT ELEVATED TEMPERATURE AND PREPARATION METHOD THEREOF

#21
20250011891
2025-01-09

HIGH-STRENGTH STEEL WITH GOOD WEATHER RESISTANCE AND MANUFACTURING METHOD THEREFOR

#22
20250003040
2025-01-02

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

#23
20240417831
2024-12-19

ALLOYED STEEL

#24
20240417819
2024-12-19

TRACK LINK PRODUCTION METHOD

#25
20240410030
2024-12-12

ULTRATHICK STEEL MATERIALS FOR FLANGE HAVING EXCELLENT STRENGTH AND LOW TEMPERATURE IMPACT TOUGHNESS, AND MANUFACTURING METHOD THEREFOR

#26
20240392404
2024-11-28

ULTRA-HIGH STRENGTH SPRING STEEL AND PREPARATION METHOD THEREOF

#27
20240384365
2024-11-21

SECTION STEEL AND METHOD FOR MANUFACTURING SAME

#28
20240383025
2024-11-21

FORGED STEEL ROLL FOR COLD ROLLING

#29
20240344159
2024-10-17

PROCESS FOR MANUFACTURING VEHICLE PARTS

#30
20240327943
2024-10-03

MECHANICAL STRUCTURAL MEMBER AND PRODUCTION METHOD FOR SAME

#31
20240318289
2024-09-26

HEAT-RESISTANT FERRITIC STEEL

#32
20240318276
2024-09-26

COLD FORGED GEAR STEEL AND MANUFACTURING METHOD THEREOF

#33
20240318273
2024-09-26

HIGH-TOUGHNESS ULTRAHIGH-STRENGTH STEEL AND MANUFACTURING METHOD THEREOF

#34
20240309481
2024-09-19

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

#35
20240271238
2024-08-15

AL-SI COATED PRESS HARDENING COMPONENT, A PREPARATION METHOD AND USE THEREOF

#36
20240254581
2024-08-01

HETEROSTRUCTURED ANTIMICROBIAL STAINLESS STEEL AND METHOD FOR SYNTHESIZING THE SAME

#37
20240247331
2024-07-25

AUSTENITIC STAINLESS STEEL FOR HIGH-PRESSURE HYDROGEN GAS OR LIQUID HYDROGEN, AND MANUFACTURING METHOD THEREFOR

#38
20240240293
2024-07-18

METHOD FOR PRODUCING GRAIN-ORIENTED ELECTRICAL STEEL SHEET

#39
20240240292
2024-07-18

METHOD OF PRODUCING GRAIN-ORIENTED ELECTRICAL STEEL SHEET AND ANNEALING SEPARATOR USED FOR SAME

#40
20240218476
2024-07-04

Steel sheet and high strength press hardened steel part and method of manufacturing the same

#41
20240209469
2024-06-27

STEEL FOR BOLTS, AND MANUFACTURING METHOD THEREFOR

#42
20240182994
2024-06-06

METHOD FOR MANUFACTURING REFERENCE PIECE FOR MEASURING RETAINED AUSTENITE

#43
20240150861
2024-05-09

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

#44
20240141466
2024-05-02

DUPLEX STAINLESS STEEL AND FORMED OBJECT THEREOF

#45
20240124962
2024-04-18

Steel for gear and method for manufacturing gear using the same

#46
20240110255
2024-04-04

Extra thick hot rolled h section steel and production method therefor

#47
20240093342
2024-03-21

ALUMINUM PLATED STEEL SHEET, THERMOFORMED COMPONENT, AND MANUFACTURING METHODS

#48
20240093325
2024-03-21

OIL RING WIRE

#49
20240082902
2024-03-14

MICROCRACK-REDUCED, HOT PRESS-FORMED ARTICLE, AND METHOD FOR MANUFACTURING SAME

#50
20240077123
2024-03-07

Valve spring

#51
20240068063
2024-02-29

MODERATE-STRENGTH STEEL RAIL AND PRODUCTION METHOD THEREOF

#52
20240060151
2024-02-22

STAINLESS STEEL MATERIAL, METHOD FOR PRODUCING SAME, AND ANTIBACTERIAL AND ANTIVIRAL MEMBER

#53
20240052465
2024-02-15

Low density cold rolled and annealed steel sheet, method of production thereof and use of such steel to produce vehicle parts

#54
20240051005
2024-02-15

PLATED STEEL SHEET FOR HOT PRESS FORMING, AND METHOD OF MANUFACTURING THE SAME

#55
20240044358
2024-02-08

Crankshaft and method of manufacturing the same

#56
20240043951
2024-02-08

NON-MAGNETIC TIMEPIECE PARTS AND THERMOMECHANICAL TREATMENT METHOD FOR OBTAINING SAID PARTS

#57
20240035135
2024-02-01

DUPLEX STAINLESS STEEL AND USE THEREOF

#58
20240035107
2024-02-01

Highly thick steel material having excellent low-temperature impact toughness and manufacturing method therefor

#59
20240026972
2024-01-25

OIL RING WIRE

#60
20240026509
2024-01-25

HIGH MOLYBDENUM DUPLEX STAINLESS STEEL

#61
20240011135
2024-01-11

HOT WORK TOOL STEEL

#62
20240002966
2024-01-04

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

#63
20230407432
2023-12-21

ANNEALING SEPARATOR COMPOSITION FOR GRAIN-ORIENTED ELECTRICAL STEEL SHEET, GRAIN-ORIENTED ELECTRICAL STEEL SHEET, AND METHOD FOR PRODUCING GRAIN-ORIENTED ELECTRICAL STEEL SHEET

#64
20230392240
2023-12-07

High carbon martensitic stainless steel

#65
20230383372
2023-11-30

Method for Forming Vehicle Component

#66
20230366055
2023-11-16

METHOD FOR PREPARING BAINITE HOT-WORKING DIE

#67
20230357909
2023-11-09

AUSTENITIC STAINLESS STEEL

#68
20230340631
2023-10-26

STEEL FOR LEAF SPRINGS OF AUTOMOBILES AND A METHOD OF MANUFACTURING OF A LEAF THEREOF

#69
20230330800
2023-10-19

Production method of novel austenitic stainless steel kitchen knives and low-carbon high-chromium martensitic alloy powder

#70
20230271635
2023-08-31

RAILWAY AXLE

#71
20230250504
2023-08-10

CONTROLLED THERMAL COEFFICIENT PRODUCT SYSTEM AND METHOD

#72
20230183828
2023-06-15

METHOD FOR PROCESSING ADVANCED HIGH STRENGTH STEEL

#73
20230175105
2023-06-08

High-strength steel allowing low-temperature welding and high-heat input welding and production method thereof

#74
20230175089
2023-06-08

Procedure for hardening slides of a perforating press and the slides obtained

#75
20230160843
2023-05-25

METHOD FOR MANUFACTURING REFERENCE PIECE FOR X-RAY MEASUREMENT OF RESIDUAL STRESS AND REFERENCE PIECE FOR X-RAY MEASUREMENT OF RESIDUAL STRESS

#76
20230160045
2023-05-25

AUSTENITIC STAINLESS STEEL AND SPRING

#77
20230160034
2023-05-25

Grain-oriented electrical steel sheet and method for manufacturing same and annealing separator

#78
20230119030
2023-04-20

METHOD FOR MANUFACTURING A METAL SHEET WITH A ZnAl COATING AND WITH OPTIMIZED WIPING, CORRESPONDING METAL SHEET, PART AND VEHICLE

#79
20230103806
2023-04-06

METHOD FOR MANUFACTURING A PART OF NITRIDED STEEL

#80
20230100153
2023-03-30

Rare earth die steel and preparation method thereof

#81
20230071853
2023-03-09

GRAIN ORIENTED ELECTRICAL STEEL SHEET

#82
20230065716
2023-03-02

MATERIAL FOR COLD ROLLED STAINLESS STEEL AND CONTAINER MADE THEREOF

#83
20230050497
2023-02-16

NON-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING SAME

#84
20230045475
2023-02-09

METHOD FOR MANUFACTURING A GRAIN-ORIENTED ELECTRICAL STEEL SHEET

#85
20230036214
2023-02-02

NON-ORIENTED ELECTRICAL STEEL SHEET AND MANUFACTURING METHOD THEREFOR

#86
20230021153
2023-01-19

Non-oriented electrical steel sheet and method for manufacturing same

#87
20220396849
2022-12-15

FERRITIC STAINLESS STEEL HAVING IMPROVED MAGNETIZATION, AND MANUFACTURING METHOD THEREFOR

#88
20220396848
2022-12-15

Non-oriented electrical steel sheet and manufacturing method therefore

#89
20220396846
2022-12-15

METHOD FOR MANUFACTURING NON-ORIENTED ELECTRICAL STEEL SHEET

#90
20220389532
2022-12-08

GRAIN-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING SAME

#91
20220372601
2022-11-24

Hot working die steel with high thermal strength and high toughness and manufacturing process thereof

#92
20220356540
2022-11-10

PRESS HARDENING STEEL WITH COMBINATION OF SUPERIOR CORROSION RESISTANCE AND ULTRA-HIGH STRENGTH

#93
20220344084
2022-10-27

Grain oriented electrical steel sheet

#94
20220340991
2022-10-27

Grain-oriented electrical steel sheet

#95
20220316019
2022-10-06

SECTION STEEL AND METHOD FOR MANUFACTURING SAME

#96
20220298618
2022-09-22

Steel sheet coated with a metallic coating based on aluminum

#97
20220259691
2022-08-18

HIGH-STRENGTH STEEL SHEET AND MANUFACTURING METHOD THEREOF

#98
20220259688
2022-08-18

Austenitic stainless steel material and welded joint

#99
20220243298
2022-08-04

NON-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING SAME

#100
20220243295
2022-08-04

HIGH STRENGTH STEEL FOR STRUCTURE WITH EXCELLENT CORROSION RESISTANCE AND MANUFACTURING METHOD FOR SAME

#101
20220226880
2022-07-21

METHOD FOR MAKING A SPRING CORE FOR A MATTRESS OR FOR SEATING PRODUCTS

#102
20220195555
2022-06-23

Method for producing grain-oriented electrical steel sheet

#103
20220195553
2022-06-23

METHOD OF PRODUCING GRAIN-ORIENTED ELECTRICAL STEEL SHEET AND ANNEALING SEPARATOR APPLICATION LINE

#104
20220195550
2022-06-23

AIR-HARDENED MACHINE COMPONENTS

#105
20220178007
2022-06-09

BINARY ALLOY DESIGN METHOD FOR MARINE STRESS CORROSION-RESISTANT HIGH-STRENGTH LOW-ALLOY (HSLA) STRESS CORROSION-RESISTANT STEEL

#106
20220170131
2022-06-02

METHOD OF MANUFACTURING LOW IRON LOSS GRAIN ORIENTED ELECTRICAL STEEL SHEET

#107
20220170130
2022-06-02

Grain-oriented electrical steel sheet and production method therefor

#108
20220162731
2022-05-26

HOT-WORKING DIE STEEL, HEAT TREATMENT METHOD THEREOF AND HOT-WORKING DIE

#109
20220154316
2022-05-19

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

#110
20220154304
2022-05-19

Non oriented electrical steel sheet

#111
20220145418
2022-05-12

Non oriented electrical steel sheet and method for producing thereof

#112
20220145416
2022-05-12

Steel material and component

#113
20220127705
2022-04-28

Hot-stamping formed body

#114
20220127690
2022-04-28

NON-DIRECTIONAL ELECTRICAL STEEL SHEET AND METHOD FOR PRODUCING SAME

#115
20220127689
2022-04-28

Deeply-hardened-surface turnout rail with high degree of undercooling and the preparation method thereof

#116
20220120039
2022-04-21

Rail

#117
20220119912
2022-04-21

Method for optimizing microstructure of rail welded joint

#118
20220112585
2022-04-14

DUPLEX STAINLESS STEEL AND FORMED OBJECT THEREOF

#119
20220112573
2022-04-14

Method for producing grain oriented electrical steel sheet

#120
20220112569
2022-04-14

Steel sheet and method for producing same

#121
20220098688
2022-03-31

Grain-oriented electrical steel sheet and method for manufacturing same and annealing separator

#122
20220090250
2022-03-24

Aluminum-based coating for flat steel products for press mold hardening components, and method for producing same

#123
20220090248
2022-03-24

Hot dip galvanized steel sheet and method for producing same

#124
20220090244
2022-03-24

Steel for gear and method for manufacturing gear using the same

#125
20220090227
2022-03-24

Grain-oriented electrical steel sheet and method for manufacturing the same

#126
20220090226
2022-03-24

METHOD FOR PRODUCING GRAIN-ORIENTED ELECTRICAL STEEL SHEET

#127
20220090225
2022-03-24

GRAIN-ORIENTED ELECTRICAL STEEL SHEET, INTERMEDIATE STEEL SHEET FOR GRAIN-ORIENTED ELECTRICAL STEEL SHEET, AND METHODS FOR MANUFACTURING SAME

#128
20220074016
2022-03-10

Grain-oriented electrical steel sheet and method for manufacturing same

#129
20220074012
2022-03-10

Annealing separator for grain-oriented electrical steel sheet and method of producing grain-oriented electrical steel sheet

#130
20220068526
2022-03-03

Grain-oriented electrical steel sheet and method of producing the same

#131
20220064753
2022-03-03

Grain-oriented electrical steel sheet, annealing separator, and method for manufacturing grain-oriented electrical steel sheet

#132
20220056545
2022-02-24

STEEL, PRODUCT MADE OF SAID STEEL, AND MANUFACTURING METHOD THEREOF

#133
20220049341
2022-02-17

High surface-pressure resistant component and production method therefor

#134
20220049323
2022-02-17

Non-oriented electrical steel sheet

#135
20220042152
2022-02-10

ABRASION RESISTANT STEEL HAVING EXCELLENT HARDNESS AND IMPACT TOUGHNESS AND MANUFACTURING METHOD THEREFOR

#136
20220042136
2022-02-10

Grain-oriented electrical steel sheet and method for manufacturing same

#137
20220042128
2022-02-10

METHOD OF MAKING A TEE RAIL HAVING A HIGH STRENGTH BASE

#138
20220042122
2022-02-10

GRADIENT STEEL MATERIAL HAVING HIGH-PLASTICITY SURFACE LAYER AND HIGH-STRENGTH INNER LAYER, AND MANUFACTURING METHOD

#139
20220025491
2022-01-27

ULTRA-THICK STEEL EXCELLENT IN BRITTLE CRACK ARRESTABILITY AND MANUFACTURING METHOD THEREFOR

#140
20220025475
2022-01-27

IMPACT AND WEAR RESISTANT COMPONENT, AND METHOD FOR PRODUCING THE SAME

#141
20220002849
2022-01-06

Low-yield-ratio ultra-high-strength high-toughness steel for pressure hulls and preparation method therefor

#142
20220002831
2022-01-06

Method for manufacturing grain-oriented electrical steel sheet and grain-oriented electrical steel sheet

#143
20210404030
2021-12-30

Steel for bolts, and method of manufacturing same

#144
20210395856
2021-12-23

PAINTED, HOT FORMED, COATED STEEL PART

#145
20210395855
2021-12-23

METHOD FOR MANUFACTURE OF A PRE-COATED STEEL SHEET

#146
20210395854
2021-12-23

PRE-COATED STEEL SHEET

#147
20210395853
2021-12-23

HOT FORMED PRE-COATED STEEL PART

#148
20210395851
2021-12-23

COATED GRAIN ORIENTED ELECTRICAL STEEL PLATES, AND METHODS OF PRODUCING THE SAME

#149
20210395850
2021-12-23

High strength austenitic stainless steel having excellent resistance to hydrogen embrittlement, method for manufacturing the same, and hydrogen equipment used for high-pressure hydrogen gas and liquid hydrogen environment

#150
20210388459
2021-12-16

METHOD FOR MANUFACTURING GRAIN-ORIENTED ELECTRICAL STEEL SHEET

#151
20210381088
2021-12-09

Steel for nitrocarburizing and nitrocarburized component, and methods of producing same

#152
20210371945
2021-12-02

High fracture toughness, high strength, precipitation hardenable stainless steel

#153
20210363621
2021-11-25

Strong, tough, and hard stainless steel and article made therefrom

#154
20210363603
2021-11-25

Hot-work die steel and a preparation method thereof

#155
20210348251
2021-11-11

Cooling device and production method for rail

#156
20210340643
2021-11-04

Hot-press molding method and hot-press molded product

#157
20210310096
2021-10-07

Method for manufacturing a grain-oriented electrical steel sheet

#158
20210269929
2021-09-02

Surface-treated steel sheet and method for manufacturing surface-treated steel sheet

#159
20210269904
2021-09-02

Seamless steel pipe and method for producing the same

#160
20210238703
2021-08-05

EDGE FORMABILITY IN METALLIC ALLOYS

#161
20210222265
2021-07-22

PRESS HARDENING STEEL WITH HIGH OXIDATION RESISTANCE

#162
20210214825
2021-07-15

AUSTENITIC STAINLESS ALLOY WITH SUPERIOR CORROSION RESISTANCE

#163
20210214816
2021-07-15

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

#164
20210202143
2021-07-01

Grain-oriented electrical steel sheet and method for manufacturing grain-oriented electrical steel sheet

#165
20210198763
2021-07-01

Personal ornament and method for producing personal ornament

#166
20210189532
2021-06-24

Hot forged steel material

#167
20210180165
2021-06-17

ADDITIVE-CONTAINING ALLOY EMBODIMENTS AND METHODS OF MAKING AND USING THE SAME

#168
20210180145
2021-06-17

Paramagnetic hard stainless steel and manufacturing process thereof

#169
20210172034
2021-06-10

Preparing method of engine valve

#170
20210140007
2021-05-13

High-strength hot rolled steel sheet and method for manufacturing same

#171
20210138544
2021-05-13

PROCESS FOR THE TREATMENT OF AN OPTIMISED STEEL MATERIAL

#172
20210130917
2021-05-06

ALLOY RIBBON PIECE AND METHOD FOR MANUFACTURING THE SAME

#173
20210108296
2021-04-15

Non-oriented electrical steel sheet

#174
20210102283
2021-04-08

Steel for nitrocarburizing and nitrocarburized component, and methods of producing same

#175
20210102277
2021-04-08

Rail and method for manufacturing same

#176
20210102269
2021-04-08

ROLLED H-SHAPE STEEL AND MANUFACTURING METHOD THEREOF

#177
20210095363
2021-04-01

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

#178
20210095356
2021-04-01

Steel sheet and manufacturing method therefor

#179
20210087660
2021-03-25

Ferritic stainless steel having excellent high-temperature oxidation resistance, and manufacturing method therefor

#180
20210062284
2021-03-04

Non-oriented electrical steel sheet and method for preparing same

#181
20210047703
2021-02-18

Method of thermomechanical treatment of semi-finished products of high-alloy steel

#182
20210040590
2021-02-11

Ferritic stainless steel having excellent salt corrosion resistance

#183
20210040574
2021-02-11

METHOD OF PRODUCTION OF STEEL SHEET SEMI-FINISHED PRODUCTS BY PRESS HARDENING WITH LOCALLY-MODIFIED STRUCTURE IN SPOTS FOR WELDING

#184
20210039355
2021-02-11

Hot-stamped body

#185
20210039354
2021-02-11

Hot-stamped body

#186
20210039152
2021-02-11

HOT STAMP CELL

#187
20210032731
2021-02-04

FERRITIC STAINLESS STEEL

#188
20210017622
2021-01-21

Hot dip galvanized steel sheet and hot dip galvannealed steel sheet

#189
20210017621
2021-01-21

Alloyed hot-dip galvanized steel sheet and alloyed hot-dip galvanized steel sheet production method

#190
20210017618
2021-01-21

Bolt and fastened structure

#191
20210010116
2021-01-14

STEEL COMPOSITION

#192
20210002772
2021-01-07

Multilayered zinc alloy plated steel material having excellent spot weldability and corrosion resistance

#193
20210002739
2021-01-07

Controlled thermal coefficient product system and method

#194
20200399731
2020-12-24

Non-oriented electrical steel sheet

#195
20200399728
2020-12-24

Continuous hot rolled coil for high collapse-resistant sew petroleum casing and manufacturing method thereof

#196
20200392594
2020-12-17

High pressure and corrosion resistant steel and preparation method and application thereof

#197
20200381150
2020-12-03

Grain-oriented electrical steel sheet

#198
20200354809
2020-11-12

Grain oriented electrical steel sheet

#199
20200347469
2020-11-05

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

#200
20200340073
2020-10-29

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

#201
20200340072
2020-10-29

CARBURIZED BEARING STEEL COMPONENT AND STEEL BAR FOR CARBURIZED BEARING STEEL COMPONENT

#202
20200332388
2020-10-22

Non-oriented electrical steel sheet and manufacturing method therefor

#203
20200332378
2020-10-22

DUPLEX STAINLESS STEEL AND METHOD FOR PRODUCING DUPLEX STAINLESS STEEL

#204
20200325555
2020-10-15

Low-iron-loss grain-oriented electrical steel sheet and production method for same

#205
20200318225
2020-10-08

Austenitic stainless steel

#206
20200318212
2020-10-08

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