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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 40799-2021 |
Machining process -- Test methods for essential energy efficiency data 机械加工过程 能效基础数据检测方法 |
China National Standards Test methods essential |
 English PDF |
| GB/T 5586-2016 |
Test methods for essential property of electrical contact materials 电触头材料基本性能试验方法 |
China National Standards Test methods essential |
English PDF |
| GB/T 5586-1998 |
Test methods for essential porperty of electric contact material 电触头材料基本性能试验方法 |
China National Standards Test methods essential |
English PDF |
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