China Copper alloy blank f GB Standards Search Result |
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1. Ready translated GB standards  and Chinese version GB Standards, you can purchase directly in the web page; After receive your payment, we will send the GB Standards PDF file to your Email within
1~3 days.
2. Other English version GB Standards are not ready translated, only after get your order, then we translate them, time usually need 3-5 days . |
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GB/T 20509-2023 Copper and copper alloy wire blanks for electric locomotive contact materials 电力机车接触材料用铜及铜合金线坯 - 英文版 |
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GB/T 15530.7-1995 Copper alloy blank flanges 铜合金法兰盖 - 英文版 |
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