GB/T 20509-2023
电力机车接触材料用铜及铜合金线坯
Copper and copper alloys drawing for contacting materials of electric locomotives
- 实施日期
- 2023-12-01
- ICS 分类
- 77.150.30
组合使用关键词、标准类型、状态与 ICS 分类,快速定位所需国家标准。
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GB/T 20509-2023
Copper and copper alloys drawing for contacting materials of electric locomotives
GB/T 27671-2023
Copper profiles for electrical purposes
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Copper alloy seamless coil tube for sheath
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High purity copper rotatable tube target for flat panel display
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Seamless copper and copper alloy tube for heat pipe
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Copper and copper alloy cold-drawn rod and bar