ClassID:

118955

C21D1/76 - CPC Classification

Classification description:

General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering; Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material Adjusting the composition of the atmosphere

Sub-classes:
Recent Application in this class:
#1
20260043122
2026-02-12

METHOD FOR THERMALLY TREATING CHROMIUM STEELS

#2
20250364164
2025-11-27

IRON NITRIDE PERMANENT MAGNET AND TECHNIQUE FOR FORMING IRON NITRIDE PERMANENT MAGNET

#3
20250305105
2025-10-02

PRE-COATED STEEL SHEET WITH ALUMINUM OR ALUMINUM ALLOY PRE-COATING, MANUFACTURING METHOD AND HOT STAMPED COMPONENTS

#4
20250290169
2025-09-18

HOT-STAMPED PART AND METHOD FOR MANUFACTURING SAME

#5
20250270666
2025-08-28

HIGH-PLASTICITY 1500-MPA-GRADE ULTRAHIGH-STRENGTH STEEL AND PREPARATION METHOD THEREFOR

#6
20250263809
2025-08-21

GRAIN ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING SAME

#7
20250215545
2025-07-03

COLD-ROLLED STEEL SHEET

#8
20250163585
2025-05-22

STEEL SHEET AND MANUFACTURING METHOD THEREFOR

#9
20250051895
2025-02-13

STEEL SHEET AND PLATED STEEL SHEET

#10
20250034688
2025-01-30

Spot Welded Joint Made from Liquid Metal Embrittlement Resistant Zinc Coated Steel Sheet

#11
20240368717
2024-11-07

METHOD OF MANUFACTURING GRAIN-ORIENTED ELECTRICAL STEEL SHEET

#12
20240352573
2024-10-24

SURFACE PREPARATION FOR JVD

#13
20240344166
2024-10-17

Method for the fabrication of a resistance spot weld

#14
20240344164
2024-10-17

ADVANCED HIGH STRENGTH ZINC PLATED STEEL SHEET HAVING EXCELLENT SURFACE QUALITY AND ELECTRICAL RESISTANCE SPOT WELDABILITY AND MANUFACTURING METHOD THEREOF

#15
20240309482
2024-09-19

COLD-ROLLED STEEL SHEET AND MANUFACTURING METHOD THEREOF

#16
20240271241
2024-08-15

METHOD FOR MANUFACTURING GRAIN-ORIENTED ELECTRICAL STEEL SHEET

#17
20240229186
2024-07-11

DEW POINT CONTROL METHOD FOR CONTINUOUS ANNEALING FURNACE, CONTINUOUS ANNEALING METHOD FOR STEEL SHEET, STEEL SHEET MANUFACTURING METHOD, CONTINUOUS ANNEALING FURNACE, CONTINUOUS HOT-DIP GALVANIZING LINE, AND GALVANNEALING LINE

#18
20240194383
2024-06-13

Soft Magnetic Iron Alloy Plate, Method for Manufacturing Soft Magnetic Iron Alloy Plate, and Iron Core and Rotating Electric Machine Employing Soft Magnetic Iron Alloy Plate

#19
20240150864
2024-05-09

GALVANIZED STEEL SHEET AND METHOD FOR PRODUCING SAME

#20
20240117455
2024-04-11

A ZINC OR ZINC-ALLOY COATED STRIP OR STEEL WITH IMPROVED ZINC ADHESION

#21
20240110257
2024-04-04

GALVANNEALED STEEL SHEET

#22
20240102124
2024-03-28

High-resistance steel strip comprising a temperature homogenisation chamber

#23
20240077200
2024-03-07

METHOD AND BURNER FOR HEATING A FURNACE FOR METAL PROCESSING

#24
20240039347
2024-02-01

Non-oriented electrical steel sheet, production method for non-oriented electrical steel sheet, electric motor and production method for electric motor

#25
20240035108
2024-02-01

GRAIN ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING SAME

#26
20240026513
2024-01-25

PRE-COATED STEEL SHEET WITH ALUMINUM OR ALUMINUM ALLOY PRE-COATING, MANUFACTURING METHOD AND HOT STAMPED COMPONENTS

#27
20240011142
2024-01-11

PROCESSING METHOD AND PROCESSING APPARATUS FOR METAL COMPONENT

#28
20230420698
2023-12-28

AUSTENITIC STAINLESS STEEL FOR POLYMER FUEL CELL SEPARATOR WITH IMPROVED CONTACT RESISTANCE AND MANUFACTURING METHOD THEREOF

#29
20230402220
2023-12-14

WOUND CORE

#30
20230352219
2023-11-02

IRON NITRIDE PERMANENT MAGNET AND TECHNIQUE FOR FORMING IRON NITRIDE PERMANENT MAGNET

#31
20230290551
2023-09-14

Soft Magnetic Iron Sheet, Method for Producing Soft Magnetic Iron Sheet, and, Iron Core and Dynamo-Electric Machine, Each Using Soft Magnetic Iron Sheet

#32
20230272502
2023-08-31

Zinc-coated steel sheet with high resistance spot weldability

#33
20230226585
2023-07-20

Low density press-hardening steel having enhanced mechanical properties

#34
20230220990
2023-07-13

DIRECT FLAME BURNER UNIT FOR FURNACES FOR THE THERMO-CHEMICAL TREATMENT OF STEEL STRIPS IN CONTINUOUS HOT-DIP GALVANIZING PLANTS

#35
20230212708
2023-07-06

METHOD FOR RECRYSTALLISATION ANNEALING OF A NON-GRAIN-ORIENTED ELECTRIC STRIP

#36
20230193442
2023-06-22

METHOD FOR THE PREOXIDATION OF STRIP STEEL IN A REACTION CHAMBER ARRANGED IN A FURNACE CHAMBER

#37
20230158774
2023-05-25

Hot-dip coated steel sheet

#38
20230137133
2023-05-04

Method for the manufacturing of liquid metal embrittlement resistant zinc coated steel sheet

#39
20230127243
2023-04-27

Steel sheet, member, and method for producing them

#40
20230024115
2023-01-26

Advanced high strength zinc plated steel sheet having excellent surface quality and electrical resistance spot weldability

#41
20220380861
2022-12-01

Press hardening method

#42
20220364197
2022-11-17

PREPARATION METHOD OF GLASSLESS GRAIN-ORIENTED SILICON STEEL AND PRODUCT THEREOF

#43
20220235442
2022-07-28

Steel sheet and method for producing the same

#44
20220235428
2022-07-28

HEAT TREATMENT FURNACE, INFORMATION PROCESSING APPARATUS AND INFORMATION PROCESSING METHOD

#45
20220090248
2022-03-24

Hot dip galvanized steel sheet and method for producing same

#46
20210355557
2021-11-18

Grain oriented electrical steel sheet

#47
20210276065
2021-09-09

Low density press-hardening steel having enhanced mechanical properties

#48
20210140726
2021-05-13

Air conditioner

#49
20210062288
2021-03-04

High-strength cold-rolled steel sheet and manufacturing method therefor

#50
20210047716
2021-02-18

Galvannealed steel sheet

#51
20210039355
2021-02-11

Hot-stamped body

#52
20210039354
2021-02-11

Hot-stamped body

#53
20210002751
2021-01-07

Zinc alloy plated steel material having excellent corrosion resistance after being processed

#54
20200407833
2020-12-31

Zinc-plated steel sheet for hot stamping and production method therefor

#55
20200377978
2020-12-03

High-strength galvanized steel sheet and method for manufacturing same

#56
20200370139
2020-11-26

Method and device for heating a steel blank for hardening purposes

#57
20200354807
2020-11-12

Galvannealed steel sheet

#58
20200338857
2020-10-29

Hot-dip coated steel sheet

#59
20200325568
2020-10-15

Low-density hot dip galvanized steel and manufacturing method therefor

#60
20200291999
2020-09-17

METHOD OF MANUFACTURING ROLLING BEARING RING

#61
20200263284
2020-08-20

Method for the manufacturing of liquid metal embrittlement resistant zinc coated steel sheet

#62
20200232063
2020-07-23

METHOD AND FURNACE FOR THERMALLY TREATING A HIGH-RESISTANCE STEEL STRIP COMPRISING A TEMPERATURE HOMOGENISATION CHAMBER

#63
20200227760
2020-07-16

Substrate stainless steel sheet for fuel cell separators and production method therefor

#64
20200199726
2020-06-25

Method for producing high-strength galvanized steel sheet

#65
20200181729
2020-06-11

Zinc-coated steel sheet with high resistance spot weldability

#66
20200181728
2020-06-11

Steel sheet for carburizing, and method for manufacturing steel sheet for carburizing

#67
20200173008
2020-06-04

Method and arrangement for processing articles

#68
20200116350
2020-04-16

Method and burner for heating a furnace for metal processing

#69
20200024720
2020-01-23

NITRIDED PART AND METHOD OF PRODUCTION OF SAME

#70
20200009833
2020-01-09

High-strength hot-dipped steel sheet having excellent coating adhesion and method for manufacturing same

#71
20190368018
2019-12-05

IRON-BASED AMORPHOUS ALLOY

#72
20190366407
2019-12-05

METHOD OF PRODUCING A MOTOR VEHICLE COMPONENT FROM A HIGH-STRENGTH STEEL ALLOY HAVING DUCTILE PROPERTIES AND MOTOR VEHICLE COMPONENT

#73
20190305328
2019-10-03

Stainless steel sheet for fuel cell separators, and production method therefor

#74
20190296369
2019-09-26

Stainless steel sheet for fuel cell separators, and production method therefor

#75
20190242002
2019-08-08

Manufacture of a stress relieved length of steel having an oxidised surface layer

#76
20190242000
2019-08-08

Method for manufacturing high-strength galvanized steel sheet

#77
20190203331
2019-07-04

Method for manufacturing ferritic stainless steel product

#78
20190189318
2019-06-20

Non-oriented electrical steel sheet and method for manufacturing non-oriented electrical steel sheet

#79
20190177829
2019-06-13

Continuous nitriding treatment furnace and continuous nitriding treatment method

#80
20190119776
2019-04-25

Method for producing a metallic coated steel sheet

#81
20190106759
2019-04-11

Steel sheet, coated steel sheet, method for producing hot-rolled steel sheet, method for producing full hard cold-rolled steel sheet, method for producing steel sheet, and method for producing coated steel sheet

#82
20180371570
2018-12-27

High-strength hot-dip galvanized steel sheet having excellent surface quality and spot weldability

#83
20180363087
2018-12-20

AUSTENITIC STAINLESS STEEL SHEET, COVER MEMBER AND PRODUCTION METHOD FOR AUSTENITIC STAINLESS STEEL SHEET

#84
20180347018
2018-12-06

High-strength air-hardening multiphase steel having excellent processing properties, and method for manufacturing a strip of said steel

#85
20180327884
2018-11-15

Method for manufacturing high-strength galvanized steel sheet and high-strength galvanized steel sheet

#86
20180298476
2018-10-18

Micro-alloyed high-strength multi-phase steel containing silicon and having a minimum tensile strength of 750 MPA and improved properties and method for producing a strip from said steel

#87
20180294078
2018-10-11

Iron nitride permanent magnet and technique for forming iron nitride permanent magnet

#88
20180291476
2018-10-11

High-strength steel sheet and method for manufacturing the same

#89
20180265954
2018-09-20

Austenitic stainless steel

#90
20180237896
2018-08-23

METHOD OF PRODUCING HOT-DIP GALVANIZED STEEL SHEET

#91
20180223401
2018-08-09

FeCo alloy, FeSi alloy or Fe sheet or strip and production method thereof, magnetic transformer core produced from said sheet or strip, and transformer comprising same

#92
20180166661
2018-06-14

Battery armoring stainless steel foil, and method of producing same

#93
20180137958
2018-05-17

Grain oriented electrical steel with improved forsterite coating characteristics

#94
20180127843
2018-05-10

Battery armoring stainless steel foil, and method of producing same

#95
20180100226
2018-04-12

Nitrided or soft nitrided part with excellent wear resistance and pitting resistance, and nitriding and soft nitriding method

#96
20180100209
2018-04-12

Method and device for reaction control

#97
20180066350
2018-03-08

Method and arrangement for processing articles

#98
20180051356
2018-02-22

METHOD OF PRODUCING GALVANNEALED STEEL SHEET

#99
20180017374
2018-01-18

Device and method for determining the loss on ignition of at least part of an iron and steel product

#100
20180016651
2018-01-18

Heat treating device

#101
20170356077
2017-12-14

Low pressure carbonitriding method and furnace

#102
20170349995
2017-12-07

Ferritic stainless steel and process for producing same

#103
20170321310
2017-11-09

Ferritic stainless steel for fuel cell and method for producing the same

#104
20170292172
2017-10-12

METHOD FOR HEAT TREATING LONG STEEL PIPES

#105
20170226609
2017-08-10

METHOD FOR PRODUCTION OF A NITRIDED PACKAGING STEEL

#106
20170152591
2017-06-01

Manufacturing method of nitrided steel member

#107
20170137923
2017-05-18

Substrate for hot-dip galvanizing or hot-dip galvannealing, production method therefor, and hot-dip galvanized steel sheet or hot-dip galvannealed steel sheet

#108
20170130287
2017-05-11

METHOD FOR HEAT TREATMENT, HEAT TREATMENT APPARATUS, AND HEAT TREATMENT SYSTEM

#109
20170114427
2017-04-27

Method for directly producing pickling-free hot-plated sheet strip product from molten steel

#110
20170029916
2017-02-02

Ferritic stainless steel foil and method for producing the same

#111
20170016107
2017-01-19

Nitriding method and nitrided part production method

#112
20160304980
2016-10-20

Method of annealing steel sheets

#113
20160298224
2016-10-13

Production method of carburized steel component and carburized steel component

#114
20160298207
2016-10-13

Bake-hardening galvanized steel sheet

#115
20160290721
2016-10-06

Continuous annealing furnace for annealing steel strip, method for continuously annealing steel strip, continuous hot-dip galvanizing facility, and method for manufacturing hot-dip galvanized steel strip

#116
20160290437
2016-10-06

Metal ring and manufacturing method for metal ring

#117
20160289784
2016-10-06

High-strength steel sheet and method for manufacturing the same

#118
20160273065
2016-09-22

Process gas preparation apparatus for an industrial furnace system and an industrial furnace system for gas carburizing and hardening of metal workpieces utilizing same

#119
20160265079
2016-09-15

Continuous annealing system and continuous annealing method

#120
20160230259
2016-08-11

Hot-dip galvanized steel sheets and galvannealed steel sheets that have good appearance and adhesion to coating and methods for producing the same (as amended)

#121
20160222500
2016-08-04

Hot-dip galvanized steel sheets and galvannealed steel sheets that have good appearance and adhesion to coating and methods for producing the same

#122
20160186298
2016-06-30

MICRO-ALLOYED HIGH-STRENGTH MULTI-PHASE STEEL CONTAINING SILICON AND HAVING A MINIMUM TENSILE STRENGTH OF 750 MPA AND IMPROVED PROPERTIES AND METHOD FOR PRODUCING A STRIP FROM SAID STEEL

#123
20160178009
2016-06-23

Bearing part, rolling bearing, and method for manufacturing bearing part

#124
20160160328
2016-06-09

Ferritic stainless steel foil

#125
20160123396
2016-05-05

Bearing component and rolling bearing

#126
20160108492
2016-04-21

High-formability and super-strength hot galvanizing steel plate and manufacturing method thereof

#127
20160079455
2016-03-17

Stainless steel substrate for solar cell having superior insulating properties and low thermal expansion coefficient and method of producing the same

#128
20160032415
2016-02-04

Heat treat production fixture

#129
20160002762
2016-01-07

High-strength steel sheet and production method therefor and high-strength galvanized steel sheet and production method therefor (as amended)

#130
20150361521
2015-12-17

Continuous annealing device and continuous hot-dip galvanising device for steel strip

#131
20150361520
2015-12-17

Continuous annealing device and continuous hot-dip galvanising device for steel strip

#132
20150322560
2015-11-12

Cr-containing austenitic alloy and method for producing the same

#133
20150322539
2015-11-12

METHOD FOR ADJUSTING FURNACE ATMOSPHERE IN CONTINUOUS ANNEALING FURNACE (AS AMENDED)

#134
20150315691
2015-11-05

Facility having a continuous annealing furnace and a galvanization bath and method for continuously manufacturing hot-dip galvanized steel sheet

#135
20150213928
2015-07-30

High-strength electrical steel sheet and method of producing the same

#136
20150206996
2015-07-23

Solar cell substrate made of stainless steel foil and method for manufacturing the same

#137
20150203950
2015-07-23

Method for Treating Elongated Metal Product by Heating and Oxidizing the Surface in a Controlled Environment

#138
20150159235
2015-06-11

Method for continuously annealing steel strip and method for manufacturing galvanized steel strip

#139
20150140218
2015-05-21

Continuous annealing furnace for annealing steel strip, method for continuously annealing steel strip, continuous hot-dip galvanizing facility, and method for manufacturing hot-dip galvanized steel strip

#140
20150140217
2015-05-21

Continuous annealing furnace for steel strip, continuous annealing method, continuous galvanizing apparatus and method for manufacturing galvanized steel strip (as amended)

#141
20150090182
2015-04-02

Continuous galvanizing line having an annealing furnace

#142
20150079527
2015-03-19

Method for heat treatment, heat treatment apparatus, and heat treatment system

#143
20150079419
2015-03-19

Process for manufacturing a recovery annealed coated steel substrate for packaging applications and a packaging steel product produced thereby

#144
20150076751
2015-03-19

Method of reducing dew point of atmosphere gas in annealing furnace, apparatus for the same and method of producing cold-rolled and annealed steel sheet

#145
20150064481
2015-03-05

Grain oriented electrical steel with improved forsterite coating characteristics

#146
20150053311
2015-02-26

Nitrided steel member and manufacturing method thereof

#147
20150044500
2015-02-12

Process for manufacturing a recovery annealed coated steel substrate for packaging applications and a packaging steel product produced thereby

#148
20150013847
2015-01-15

Method for producing silicon steel normalizing substrate

#149
20140373980
2014-12-25

Ferrite-based stainless steel plate having excellent resistance against scale peeling, and method for manufacturing same

#150
20140366993
2014-12-18

Method of carburizing

#151
20140299810
2014-10-09

Iron nitride permanent magnet and technique for forming iron nitride permanent magnet

#152
20140255720
2014-09-11

Ultrathin electromagnetic steel sheet

#153
20140174608
2014-06-26

Method for manufacturing high strength galvanized steel sheet having excellent stability of mechanical properties, formability, and coating appearance

#154
20140145381
2014-05-29

Method and apparatus for achieving higher cooling rates of a gas during bypass cooling in a batch annealing furnace of cold rolling mills

#155
20140102593
2014-04-17

Method of heat treatment and the directions for use of furnace of heat treatment

#156
20140048179
2014-02-20

Manufacturing method of machine component

#157
20140041763
2014-02-13

Gas nitrocarburizing method and method for manufacturing bearing part

#158
20130333808
2013-12-19

Nitrided steel member and manufacturing method thereof

#159
20130327067
2013-12-12

METHOD FOR EFFICIENTLY DELIVERING LIQUID ARGON TO A FURNACE BY RE-CONDENSATION IN A PHASE SEPARATOR

#160
20130306203
2013-11-21

High strength steel sheet and method for manufacturing the same

#161
20130306194
2013-11-21

Manufacturing process for aerospace bearing rolling elements

#162
20130273251
2013-10-17

Continuous annealing method and a manufacturing method of hot-dip galvanized steel strips

#163
20130263976
2013-10-10

Method for manufacturing grain oriented electrical steel sheet

#164
20130180305
2013-07-18

Method for producing a flat steel product which can be readily formed, flat steel product and method for producing a component from such a flat steel product

#165
20130074996
2013-03-28

Method for manufacturing grain oriented electrical steel sheet

#166
20130074992
2013-03-28

Method of manufacturing metal part

#167
20130068350
2013-03-21

Method and apparatus for heating a pre-coated plate of steel

#168
20130048157
2013-02-28

Method for manufacturing high-Si cold rolled steel sheet having excellent chemical conversion properties

#169
20130048150
2013-02-28

Method for producing workpieces from lightweight steel having material properties that are adjustable across the wall thickness

#170
20130019796
2013-01-24

Continuous gas carburizing furnace

#171
20130008567
2013-01-10

Heat treatment method

#172
20120325376
2012-12-27

High-strength cold-rolled steel sheet and method for producing the same

#173
20120325372
2012-12-27

Method for reduction of time in a gas carburizing process and cooling apparatus utilizing a high speed quenching oil flow rate

#174
20120321502
2012-12-20

Non-oriented electrical steel sheet

#175
20120318407
2012-12-20

Spring steel and surface treatment method for steel material

#176
20120312425
2012-12-13

Gas-carburized steel part excellent in surface fatigue strength, steel product for gas carburizing, and manufacturing method of gas-carburized steel part

#177
20120152411
2012-06-21

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

#178
20120145289
2012-06-14

Piston Ring Material For Internal Combustion Engine

#179
20120121931
2012-05-17

Steel material for dissimilar metal joining, joined body of dissimilar metals and process for joining dissimilar metal materials

#180
20120085209
2012-04-12

Cutting method of steel for machine structural use

#181
20120082587
2012-04-05

High strength low alloyed sintered steel

#182
20120055592
2012-03-08

Method of metal processing using cryogenic cooling

#183
20120024516
2012-02-02

Method and apparatus for achieving higher cooling rates of a gas during bypass cooling in a batch annealing furnace of cold rolling mills

#184
20110284132
2011-11-24

METHOD FOR REDUCTION OF TIME IN A GAS CARBURIZING PROCESS AND COOLING APPARATUS

#185
20110272637
2011-11-10

Method for producing a gaseous atmosphere for treating metals

#186
20110272065
2011-11-10

Soft magnetic alloy ribbon and its production method, and magnetic device having soft magnetic alloy ribbon

#187
20110265920
2011-11-03

High-purity ferritic stainless steels excellent in corrosion resistance and method of production of same

#188
20110209798
2011-09-01

Grain-oriented electrical steel sheet and manufacturing method thereof

#189
20110186191
2011-08-04

Steel sheet for vitreous enameling and method for producing the same

#190
20110174419
2011-07-21

System and method for annealing alloy steel components

#191
20110162758
2011-07-07

FURNACE OF HEAT TREATMENT, THE METHOD OF HEAT TREATMENT, AND THE DIRECTIONS FOR USE OF FURNACE OF HEAT TREATMENT

#192
20110097595
2011-04-28

Steel material for dissimilar metal joining, joined body of dissimilar metals and process for joining dissimilar metal materials

#193
20110042866
2011-02-24

Method for conditioning process gases for the heat treatment of metallic work pieces in industrial furnaces

#194
20110008546
2011-01-13

PROCESSES FOR PRODUCING HIGH-STRENGTH HOT-DIP GALVANIZED STEEL SHEET AND HIGH-STRENGTH GALVANNEALED STEEL SHEET

#195
20100213648
2010-08-26

Heat treatment furnace

#196
20100180655
2010-07-22

Hot rolling apparatus

#197
20100173072
2010-07-08

Method and device for controlling oxidizing-reducing of the surface of a steel strip running continuously through a radiant tubes furnace for its galvanizing

#198
20100170319
2010-07-08

METHOD FOR PRESS HARDENING OF METALS

#199
20100158745
2010-06-24

PISTON RING MATERIAL FOR INTERNAL COMBUSTION ENGINE

#200
20100154937
2010-06-24

Carbonitriding method, machinery component fabrication method, and machinery component

#201
20100139812
2010-06-10

CASE HARDENING TITANIUM AND ITS ALLOYS

#202
20100139811
2010-06-10

Carbonitrided induction hardened steel part superior in surface fatigue strength at high temperature and method of production of same

#203
20100127421
2010-05-27

BI-DIRECTIONAL FLOW FOR PROCESSING SHAPED BODIES

#204
20100043926
2010-02-25

METHOD FOR PREVENTING CARBON STEEL FROM INTERGRANULAR CRACKING

#205
20100043232
2010-02-25

Colored Razor Blades

#206
20100040872
2010-02-18

Product for enameling and enameled product

#207
20090253090
2009-10-08

System for controlling atmosphere gas inside furnace

#208
20090173417
2009-07-09

METHOD FOR ANNEALING OR HARDENING OF METALS

#209
20090165896
2009-07-02

Carbonitriding method, machinery component fabrication method, and machinery component

#210
20090123651
2009-05-14

Continuous Annealing and Hot Dip Plating Method and Continuous Annealing and Hot Dip Plating System of Steel sheet Containing Si

#211
20090101240
2009-04-23

Carbonitriding method, machinery component fabrication method, and machinery component

#212
20090065098
2009-03-12

High-strength steel excellent in weldability and process for production thereof

#213
20090064749
2009-03-12

Process for producing stainless steel pipe

#214
20090032982
2009-02-05

SYSTEM AND METHOD FOR PROVIDING A GAS MIXTURE

#215
20090026666
2009-01-29

Method for batchwise heat treatment of goods to be annealed

#216
20080308978
2008-12-18

Heat-Treating of Rolling Elements for Bearings, and Furnace for Implementing Such Treatment

#217
20080283157
2008-11-20

Method of Production of Hot Dipped Hot Rolled Steel Strip

#218
20080149226
2008-06-26

Method of optimizing an oxygen free heat treating process

#219
20080149225
2008-06-26

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