ClassID:

119615

C22C9/04 - CPC Classification

Classification description:

Alloys based on copper with zinc as the next major constituent

Recent Application in this class:
#1
20260139346
2026-05-21

APPARATUS AND METHOD FOR PRODUCTION OF HIGH PURITY COPPER-BASED ALLOYS

#2
20260132488
2026-05-14

WROUGHT COPPER-ZINC ALLOY, SEMI-FINISHED PRODUCT MADE FROM A WROUGHT COPPER-ZINC ALLOY, AND METHOD FOR PRODUCING SUCH A SEMI-FINISHED PRODUCT

#3
20260097454
2026-04-09

COPPER ALLOY BONDING WIRE FOR SEMICONDUCTOR DEVICES

#4
20260028701
2026-01-29

WROUGHT COPPER-ZINC ALLOY, SEMI-FINISHED PRODUCT FORMED OF A WROUGHT COPPER-ZINC ALLOY AND METHOD FOR PRODUCING A SEMI-FINISHED PRODUCT OF THIS TYPE

#5
20260028700
2026-01-29

CASTING MATERIAL MADE OF A COPPER-ZINC ALLOY, METHOD FOR PRODUCING A CAST PRODUCT AND CAST PART

#6
20250388997
2025-12-25

APPARATUS AND METHOD FOR PRODUCTION OF HIGH PURITY COPPER-BASED ALLOYS

#7
20250341014
2025-11-06

NEUTRAL pH COPPER PLATING SOLUTION FOR UNDERCUT REDUCTION

#8
20250270677
2025-08-28

LEAD-FREE AND ANTIMONY-FREE BRASS ALLOY

#9
20250197971
2025-06-19

LEAD-FREE BRASS ALLOY AND MACHINE ELEMENT PRODUCED THEREFROM

#10
20250197970
2025-06-19

LEAD-FREE BRASS ALLOY AND BEARING COMPONENT PRODUCED THEREFROM

#11
20250172175
2025-05-29

SLIDING MATERIAL

#12
20250163544
2025-05-22

HIGH PURITY COPPER-BASED ALLOYS FORMED USING INERT GAS

#13
20250129449
2025-04-24

APPARATUS AND METHOD FOR PRODUCTION OF HIGH PURITY COPPER-BASED ALLOYS

#14
20250059630
2025-02-20

Components For Drinking Water Pipes, And Method For Manufacturing Same

#15
20250051882
2025-02-13

COPPER ALLOY POWDER

#16
20250019797
2025-01-16

COPPER-ZINC ALLOY

#17
20250018487
2025-01-16

ELECTRODE WIRE

#18
20240384466
2024-11-21

COBALT-FREE STEEL CORD-RUBBER COMPOSITE

#19
20240384374
2024-11-21

CU-ZN-ALLOY

#20
20240287698
2024-08-29

Bronze layers as noble metal substitutes

#21
20240279835
2024-08-22

Neutral pH copper plating solution for undercut reduction

#22
20240279775
2024-08-22

APPARATUS AND METHOD FOR PRODUCTION OF HIGH PURITY COPPER-BASED ALLOYS

#23
20240191429
2024-06-13

STEEL CORD WITH A BRASS COATING ENRICHED WITH IRON PARTICLES

#24
20240093332
2024-03-21

FREE-CUTTING COPPER ALLOY AND METHOD FOR MANUFACTURING FREE-CUTTING COPPER ALLOY

#25
20240002980
2024-01-04

BRASS ALLOY

#26
20230392048
2023-12-07

Antimicrobial metallized thin films for refurbishing communal contact surfaces

#27
20230373235
2023-11-23

BRASS ALLOY FOR WRITING INSTRUMENT TIPS

#28
20230364674
2023-11-16

METHOD FOR THE OBTAINING OF COST EFFECTIVE GEOMETRICALLY COMPLEX PIECES

#29
20230357894
2023-11-09

WROUGHT ALLOY FOR A BEARING MATERIAL

#30
20230353012
2023-11-02

BALANCE WEIGHT FOR ELECTRIC COMPRESSOR MOTOR AND MANUFACTURING METHOD THEREOF

#31
20230349638
2023-11-02

Apparatus and method for production of high purity copper-based alloys

#32
20230313340
2023-10-05

Apparatus and method for production of high purity copper-based alloys

#33
20230195037
2023-06-22

WATCH CASE WITH ROTATING BEZEL

#34
20230160039
2023-05-25

WIRE ROD OF CU-ZN-SI BASED ALLOY OBTAINED BY UP-DRAWING CONTINUOUS CASTING

#35
20230151457
2023-05-18

Lead-Free Brass Alloy

#36
20230091831
2023-03-23

Pb free Cu—Zn alloy

#37
20230084143
2023-03-16

Surface treatment method for copper or copper alloy, surface treatment liquid for sterilizing copper or copper alloy, and sterilization method using copper or copper alloy treated by said method

#38
20230055850
2023-02-23

Continuously Cast Mg Brass

#39
20230054725
2023-02-23

PINION SHAFT, WATCH MECHANISM, WATCH OR MEASUREMENT DEVICE WITHOUT A MAGNETIC SIGNATURE

#40
20230042851
2023-02-09

CONNECTION TERMINAL

#41
20230037406
2023-02-09

LEAD-FREE BRASS ALLOY AND METHOD OF USING THE LEAD-FREE BRASS ALLOY

#42
20230035864
2023-02-02

LEAD-FREE AND ANTIMONY-FREE BRASS ALLOY

#43
20230018430
2023-01-19

Copper alloy bonding wire for semiconductor devices

#44
20220331861
2022-10-20

Method for manufacturing a lead-free or low lead content brass billet and billet thus obtained

#45
20220316028
2022-10-06

Copper alloy plate, copper alloy plate with plating film, and methods for producing these

#46
20220259711
2022-08-18

Free-cutting copper alloy and method for producing free-cutting copper alloy

#47
20220212277
2022-07-07

WIRE ELECTRODE FOR SPARK-EROSION CUTTING AND METHOD FOR PRODUCING SAID WIRE ELECTRODE

#48
20220209447
2022-06-30

Electrical contact element

#49
20220186352
2022-06-16

Free-cutting copper alloy, and manufacturing method of free-cutting copper alloy

#50
20220167624
2022-06-02

Antibacterial surface treated copper material and a method for preparing the same

#51
20220162734
2022-05-26

Copper alloy plate and method for producing same

#52
20220136561
2022-05-05

WEAR RESISTANT, HIGHLY THERMALLY CONDUCTIVE SINTERED ALLOY

#53
20220136086
2022-05-05

Lead-free CU-Zn alloy

#54
20220136085
2022-05-05

Lead-free Cu-Zn alloy

#55
20220119920
2022-04-21

LEAD-FREE COPPER ALLOY AND COMPONENT WITH THE LEAD-FREE COPPER ALLOY

#56
20220112656
2022-04-14

Steel cord with a brass coating enriched with iron particles

#57
20220090249
2022-03-24

Free-cutting copper alloy and method for manufacturing free-cutting copper alloy

#58
20220042141
2022-02-10

Free-cutting copper alloy and method for producing free-cutting copper alloy

#59
20220034432
2022-02-03

PIPING ARTICLES INCORPORATING AN ALLOY OF COPPER, ZINC, AND SILICON

#60
20220025218
2022-01-27

ANTIMICROBIAL METALLIZED THIN FILMS FOR REFURBISHING COMMUNAL CONTACT SURFACES

#61
20210395863
2021-12-23

Complex copper alloy including high-entropy alloy and method of manufacturing same

#62
20210388505
2021-12-16

Fastener member

#63
20210368805
2021-12-02

ANTIMICROBIAL MATERIAL

#64
20210363613
2021-11-25

Free-cutting leadless copper alloy with no lead and bismuth

#65
20210362475
2021-11-25

Surface treated copper foil, copper clad laminate, and printed circuit board

#66
20210360785
2021-11-18

Surface treated copper foil, copper clad laminate, and printed circuit board

#67
20210355563
2021-11-18

Corrosion-resistant CuZn alloy

#68
20210355562
2021-11-18

High-tensile brass alloy and high-tensile brass alloy product

#69
20210348417
2021-11-11

Mini Protective Key

#70
20210337664
2021-10-28

Surface treated copper foil, copper clad laminate, and printed circuit board

#71
20210331449
2021-10-28

Surface treated copper foil, copper clad laminate, and printed circuit board

#72
20210323141
2021-10-21

Protective Key

#73
20210320446
2021-10-14

Electrical connector with components of better material and little lead, preferably on the basis of copper

#74
20210317550
2021-10-14

Corrosion resistant CuZn alloy

#75
20210291268
2021-09-23

METHOD FOR OBTAINING A BRASS BILLET WITH REDUCED LEAD CONTENT AND THE BILLET THUS OBTAINED

#76
20210275948
2021-09-09

Anti-Corrosion Fluid Filter System

#77
20210272785
2021-09-02

Physical vapor deposition processing systems target cooling

#78
20210187608
2021-06-24

Material obtained by compaction and densification of metallic powder(s)

#79
20210164073
2021-06-03

Lead-free copper-zinc alloy that can withstand the marine environment

#80
20210147989
2021-05-20

Dilute alloy catalysts for electrochemical CO2 reduction

#81
20210147961
2021-05-20

Copper alloy and application thereof

#82
20210120791
2021-04-29

Wire material consisting of a copper alloy, mesh and breeding cage for aquaculture

#83
20210045502
2021-02-18

Copper alloy fastener element and slide fastener

#84
20210040989
2021-02-11

Sintered bearing and method for manufacturing sintered bearing

#85
20210032726
2021-02-04

Copper-zinc-nickel-manganese alloy

#86
20210025030
2021-01-28

Low silicon copper alloy piping components and articles

#87
20200407824
2020-12-31

Copper alloy plate and method for producing same

#88
20200370147
2020-11-26

COPPER-ZINC ALLOY

#89
20200338611
2020-10-29

Continuously Cast Mg Brass

#90
20200312808
2020-10-01

COPPER ALLOY BONDING WIRE FOR SEMICONDUCTOR DEVICES

#91
20200308675
2020-10-01

COPPER ALLOY

#92
20200308674
2020-10-01

COPPER ALLOY

#93
20200283872
2020-09-10

Sliding element consisting of a copper-zinc alloy

#94
20200266039
2020-08-20

Physical vapor deposition processing systems target cooling

#95
20200248329
2020-08-06

NEUTRAL pH COPPER PLATING SOLUTION FOR UNDERCUT REDUCTION

#96
20200227086
2020-07-16

Materials for near field transducers and near field transducers containing same

#97
20200219635
2020-07-09

Covered electrical wire, terminal-equipped electrical wire, and twisted wire

#98
20200199779
2020-06-25

Copper-zinc-aluminum-iron single crystal alloy material

#99
20200190630
2020-06-18

MASTER ALLOY FOR CASTING A MODIFIED COPPER ALLOY AND CASTING METHOD USING THE SAME

#100
20200190629
2020-06-18

Rose-gold-colored copper alloy and vehicle interior material using the same

#101
20200181748
2020-06-11

Free-cutting copper alloy and method for producing free-cutting copper alloy

#102
20200181739
2020-06-11

High-strength free-cutting copper alloy and method for producing high-strength free-cutting copper alloy

#103
20200172995
2020-06-04

Copper alloy, use of a copper alloy, sanitary fitting and method for producing a sanitary fitting

#104
20200165706
2020-05-28

Free-cutting copper alloy and method for producing free-cutting copper alloy

#105
20200157919
2020-05-21

Device and method for prevention of formation of sediments of paraffin and asphaltenes deposits in the pipeline

#106
20200157688
2020-05-21

Surface treatment method for copper or copper alloy, surface treatment liquid for sterilizing copper or copper alloy, and sterilization method using copper or copper alloy treated by said method

#107
20200157658
2020-05-21

Free-cutting copper alloy casting and method for producing free-cutting copper alloy casting

#108
20200157656
2020-05-21

Powder metallurgy process for making lead free brass alloys

#109
20200123633
2020-04-23

Free-cutting copper alloy, and method for producing free-cutting copper alloy

#110
20200071805
2020-03-05

Precipitation-strengthened copper alloy and application thereof

#111
20200061729
2020-02-27

EDM MILLING ELECTRODE

#112
20200061687
2020-02-27

Method for making Mg brass EDM wire

#113
20200056104
2020-02-20

System and Method to Decrease the Viscosity of the Crude Oil and the Potentiation of Dehydration

#114
20200024694
2020-01-23

Lubricant-compatible copper alloy

#115
20200024690
2020-01-23

Copper alloy production method and method for manufacturing foil from copper alloy

#116
20200020463
2020-01-16

Method for producing Nb3Sn superconducting wire, precursor for Nb3Sn superconducting wire, and Nb3Sn superconducting wire using same

#117
20200013748
2020-01-09

BONDING WIRE FOR SEMICONDUCTOR DEVICE

#118
20190390302
2019-12-26

Wear-resistant copper-zinc alloy and mechanical device using same

#119
20190338435
2019-11-07

Metal wires, manufacturing methods therefor and tires

#120
20190322138
2019-10-24

PLATED STEEL WIRE, METHOD OF MANUFACTURING PLATED STEEL WIRE, STEEL CORD, AND RUBBER COMPOSITE

#121
20190316243
2019-10-17

Nanoporous Copper-Zinc-Aluminum Shape Memory Alloy and Preparation and Application Thereof

#122
20190299295
2019-10-03

Method for manufacturing a lead-free or low lead content bass billet and billet thus obtained

#123
20190283132
2019-09-19

Powder metallurgy process for making lead free brass alloys

#124
20190276918
2019-09-12

Additive manufacturing method of lead-free environmentally-friendly high-strength brass alloy

#125
20190269207
2019-09-05

Copper alloy fastener element and slide fastener

#126
20190264313
2019-08-29

Sheet matertal of copper alloy and method for producing same

#127
20190256960
2019-08-22

Free-cutting copper alloy casting, and method for producing free-cutting copper alloy casting

#128
20190249276
2019-08-15

Free-cutting copper alloy, and method for producing free-cutting copper alloy

#129
20190249275
2019-08-15

CONDUCTIVE MATERIAL FOR CONNECTION PARTS WHICH HAS EXCELLENT MINUTE SLIDE WEAR RESISTANCE

#130
20190249274
2019-08-15

CONDUCTIVE MATERIAL FOR CONNECTION PARTS WHICH HAS EXCELLENT MINUTE SLIDE WEAR RESISTANCE

#131
20190241999
2019-08-08

Free-cutting copper alloy, and method for producing free-cutting copper alloy

#132
20190233919
2019-08-01

Alloy coated EDM wire

#133
20190218646
2019-07-18

Slide material and method for manufacturing same, and slide member

#134
20190203376
2019-07-04

Method for making nanoporous copper

#135
20190194812
2019-06-27

GAP-FILLING SEALING LAYER OF THERMAL BARRIER COATING

#136
20190194778
2019-06-27

Silver-coated alloy powder, electrically conductive paste, electronic part, and electric device

#137
20190172431
2019-06-06

NICKEL BRASS CYMBAL HAVING LOW NICKEL CONTENT

#138
20190169711
2019-06-06

Free-cutting copper alloy and method for producing free-cutting copper alloy

#139
20190161832
2019-05-30

Shape Memory Alloy Wire With Controlled Energy Damping

#140
20190148412
2019-05-16

MULTILAYER WIRING FILM AND THIN FILM TRANSISTOR ELEMENT

#141
20190093195
2019-03-28

Lead-free high tensile brass alloy and high tensile brass alloy product

#142
20190088280
2019-03-21

MATERIALS FOR NEAR FIELD TRANSDUCERS AND NEAR FIELD TRANSDUCERS CONTAINING SAME

#143
20190057851
2019-02-21

Physical vapor deposition processing systems target cooling

#144
20190041799
2019-02-07

PINION SHAFT, WATCH MECHANISM, WATCH OR MEASUREMENT DEVICE WITHOUT A MAGNETIC SIGNATURE

#145
20190040499
2019-02-07

Unleaded free-cutting brass alloys with excellent castability, method for producing the same, and application thereof

#146
20190040498
2019-02-07

Copper-based alloy casting in which grains are refined

#147
20190017149
2019-01-17

High tensile brass alloy and high tensile brass alloy product

#148
20190009331
2019-01-10

Material obtained by compaction and densification of metallic powder(s)

#149
20190003015
2019-01-03

Age-hardenable sterling silver alloy with improved “tarnishing” resistance and master alloy composition for its production

#150
20180374815
2018-12-27

Bonding wire for semiconductor device

#151
20180371581
2018-12-27

Low-cost lead-free dezincification-resistant brass alloy for casting

#152
20180366153
2018-12-20

Materials for near field transducers and near field transducers containing same

#153
20180355459
2018-12-13

Oxide dispersion-strengthened alloy (ODS), lead-free and free-cutting brass and producing method thereof

#154
20180320250
2018-11-08

Electrodes for laser chambers having extended lifetime

#155
20180291484
2018-10-11

Copper-nickel-zinc alloy and use thereof

#156
20180279516
2018-09-27

Surface mount metal unit and electric device including same

#157
20180274074
2018-09-27

Copper alloy sheet material

#158
20180230625
2018-08-16

Process for manufacturing an elongated steel element to reinforce rubber products

#159
20180230574
2018-08-16

Low-lead copper alloys

#160
20180209441
2018-07-26

Composite suction liners and applications thereof

#161
20180200656
2018-07-19

Anti-corrosion fluid filter system

#162
20180155807
2018-06-07

COPPER ALLOY

#163
20180148813
2018-05-31

Lead-free easy-cutting high-strength corrosion-resistant silicon-brass alloy and the preparation method and use thereof

#164
20180137889
2018-05-17

Materials for near field transducers and near field transducers containing same

#165
20180133843
2018-05-17

Bonding wire for semiconductor device

#166
20180130763
2018-05-10

Bonding wire for semiconductor device

#167
20180119253
2018-05-03

Plug-in connector and semi-finished product made from an aluminum alloy strip

#168
20180105913
2018-04-19

Coinage cladding alloy and processing for making coinage cladding alloy

#169
20180105912
2018-04-19

Coinage alloy and processing for making coinage alloy

#170
20180105911
2018-04-19

Coinage alloy and processing for making coinage alloy

#171
20180087130
2018-03-29

COPPER ALLOY FOR USE IN A MEMBER FOR WATER WORKS

#172
20180066339
2018-03-08

Cobalt Silicide-Containing Copper Alloy

#173
20180049521
2018-02-22

Metallic fastener member and fastener equipped with same

#174
20180019559
2018-01-18

Rectangular rolled copper foil, flexible flat cable, rotary connector, and method of manufacturing rectangular rolled copper foil

#175
20180010212
2018-01-11

COPPER-ZINC ALLOY AND USE THEREOF

#176
20170350449
2017-12-07

COPPER ALLOY FOR SLIDE BEARING AND SLIDE BEARING

#177
20170349976
2017-12-07

Metallic fastener member having light gold color, and fastener provided therewith

#178
20170341957
2017-11-30

Water treatment apparatus producing no harmful substances

#179
20170321302
2017-11-09

COPPER ALLOY FOR BEARING AND BEARING

#180
20170314098
2017-11-02

COPPER ALLOY FOR BEARING AND BEARING

#181
20170292478
2017-10-12

Device for lowering the pour point of crude oil or heavy fuel oil

#182
20170271800
2017-09-21

Precious-metal-alloy contacts

#183
20170271567
2017-09-21

COPPER ALLOY PLATE STRIP FOR USE IN LED LEAD FRAME

#184
20170268081
2017-09-21

White antimicrobial copper alloy

#185
20170252873
2017-09-07

Solder paste

#186
20170216974
2017-08-03

Bonding wire for semiconductor device

#187
20170211169
2017-07-27

Method of producing hot forged product using brass and hot forged product and wetted product such as valve and water faucet molded using the same

#188
20170204501
2017-07-20

ELECTRICAL CONNECTION ELEMENT

#189
20170200690
2017-07-13

Bonding wire for semiconductor device

#190
20170200689
2017-07-13

Bonding wire for semiconductor device

#191
20170170470
2017-06-15

Negative electrode active material, negative electrode and battery

#192
20170170139
2017-06-15

Method for producing a bondable coating on a carrier strip

#193
20170159140
2017-06-08

Production method for maraging steel and production method for maraging steel consumable electrode

#194
20170145549
2017-05-25

High-tensile brass alloy and alloy product

#195
20170145544
2017-05-25

Lead-Free Brass Alloy

#196
20170121904
2017-05-04

Brass-plated steel wire for reinforcing rubber articles

#197
20170121791
2017-05-04

LOW-LEAD BRASS ALLOY FOR USE IN MEMBER FOR WATER WORKS

#198
20170107598
2017-04-20

METHOD FOR INHIBITING DEZINCIFICATION OF BRASS

#199
20170089649
2017-03-30

HEAT TRANSFER TUBE CONSTRUCTED OF TIN BRASS ALLOY

#200
20170072489
2017-03-16

Electric discharge machining electrode wire and manufacturing method therefor

#201
20170069342
2017-03-09

Materials for near field transducers, near field tranducers containing same, and methods of forming

#202
20170062193
2017-03-02

CuSn, CuZn AND Cu2ZnSn SPUTTER TARGETS

#203
20170058382
2017-03-02

Copper alloy sheet strip with surface coating layer excellent in heat resistance

#204
20170044651
2017-02-16

Copper alloy sheet strip with surface coating layer excellent in heat resistance

#205
20170040081
2017-02-09

Copper alloy element wire, copper alloy stranded wire, and automotive electric wire

#206
20170021421
2017-01-26

COPPER-BASED ALLOYS AND THEIR USE FOR INFILTRATION OF POWDER METAL PARTS

#207
20170016480
2017-01-19

Plain bearing composite material

#208
20170016097
2017-01-19

Copper-nickel-zinc alloy containing silicon

#209
20170014928
2017-01-19

Electrode Wire for Electric Discharge Machining and Method for Manufacturing the Electrode Wire

#210
20170014927
2017-01-19

Electric discharge machining electrode wire and manufacturing method therefor

#211
20160369374
2016-12-22

Copper alloy for electronic and electrical equipment, copper alloy thin sheet for electronic and electrical equipment, and conductive component for electronic and electrical equipment, terminal

#212
20160368070
2016-12-22

High-precision zinc-based alloy electrode wire and manufacture method thereof

#213
20160362767
2016-12-15

LEAD-FREE BISMUTH-FREE SILICON-FREE BRASS

#214
20160340759
2016-11-24

BRASS WITH IMPROVED DEZINCIFICATION RESISTANCE AND MACHINABILITY

#215
20160300634
2016-10-13

COPPER ALLOY FOR ELECTRIC AND ELECTRONIC DEVICE, COPPER ALLOY SHEET FOR ELECTRIC AND ELECTRONIC DEVICE, CONDUCTIVE COMPONENT FOR ELECTRIC AND ELECTRONIC DEVICE, AND TERMINAL

#216
20160289797
2016-10-06

Copper-zinc alloy, band material composed thereof, process for producing a semifinished part composed of a copper-zinc alloy and sliding element composed of a copper-zinc alloy

#217
20160265093
2016-09-15

Shape Memory Alloy Conductor That Resists Plastic Deformation

#218
20160265089
2016-09-15

Method for controlling the energy damping of a shape memory alloy with surface roughness

#219
20160265088
2016-09-15

Brass alloy comprising ceramic alumina nanoparticles and having improved machinability

#220
20160256929
2016-09-08

Method of producing composite component having brass or bronze using sinter fit

#221
20160235073
2016-08-18

WHITE ANTIMICROBIAL COPPER ALLOY

#222
20160222489
2016-08-04

Copper alloy and copper alloy sheet

#223
20160221095
2016-08-04

Low-boron-oxygen cutting line for one-way wire winding and manufacturing method thereof

#224
20160215366
2016-07-28

BRASS HAVING IMPROVED CASTABILITY AND CORROSION RESISTANCE

#225
20160212836
2016-07-21

Surface-Treated Metal Material, Metal Foil With Carrier, Connector, Terminal, Laminate, Shielding Tape, Shielding Material, Printed Wiring Board, Processed Metal Member, Electronic Device, And Method For Manufacturing Printed Wiring Board

#226
20160203959
2016-07-14

Cylindrical sputtering target material

#227
20160201180
2016-07-14

Copper alloy

#228
20160201164
2016-07-14

COPPER ALLOY

#229
20160194749
2016-07-07

Manufacturing method of cylindrical sputtering target material

#230
20160194735
2016-07-07

COPPER ALLOY FOR ELECTRIC AND ELECTRONIC DEVICE, COPPER ALLOY SHEET FOR ELECTRIC AND ELECTRONIC DEVICE, CONDUCTIVE COMPONENT FOR ELECTRIC AND ELECTRONIC DEVICE, AND TERMINAL

#231
20160189735
2016-06-30

Materials for near field transducers and near field transducers containing same

#232
20160189693
2016-06-30

NICKEL BRASS CYMBAL HAVING LOW NICKEL CONTENT

#233
20160186295
2016-06-30

COPPER ALLOY AND COPPER ALLOY SHEET

#234
20160145719
2016-05-26

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