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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 3871.12-2005 |
Agricultural Tractors-Test procedures-Part 12:Working Tests 农业拖拉机 试验规程 第12部分 使用试验 |
China National Standards 2:Working |
 English PDF |
| GB/T 4019.2-1997 |
Box type vertical drilling machines--Testing of the accuracy--Part 2:Working tests 方柱立式钻床 精度检验 第2部分:工作精度检验 |
China National Standards 2:Working |
English PDF |
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