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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| JB/T 13925-2020 |
Detection method of Polygonal shank with flange contact surface {译} 带有法兰接触面的多棱锥柄检测方法 |
China Machinery Industry
Standards Polygon |
 English PDF |
| JJG 283-2007 |
Verification Regulation of Angular Polygon 正多面棱体检定规程 |
China Metrological
Standards Polygon |
English PDF |
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