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| International Standard Category: Machining centres |
GB/T 20957.4-2007 Test conditions for precision machining centres—Part 4:Accuracy and repeatability of positioning of linear and rotary axes
精密加工中心检验条件 第4部分：线性和回转轴线的定位精度和重复定位精度检验;
| Category No.: | 25.040.10 | Valid Status: | valid |
| Issued Organization: | AQSIQ;SAC | Issued Date: | 2007-7-26 |
| Implemented Date: | 2007-12-1 | Abolished Date: | |
| Superseded Standard.: | Superseded Date: |
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