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| Chinese National Standard Category: Machine tool assistive device and accessory |
| English Title: | Auto index milling head with axes A,C of main drive—Part 1:Testing of accuracy |
| Chinese Title: | 主传动驱动型AC轴自动分度铣头 第1部分：精度检验 |
| Standard No.: | GB/T 28389.1-2012 |
| Category No.: | J52 |
| Issued by: | AQSIQ;SAC |
| Issued on: | 2012-5-11 |
| Implemented on: | 2012-10-1 |
| Status: | valid |
| Superseded by: | |
| Superseded on: | |
| Abolished on: | |
| Superseding: | |
| Word Count: | 6000 words |
| Similar Standards: |
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