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| International Standard Category: Nuts |
GB/T 806-1988 Knurled nut with collar
滚花高螺母 ;
| Category No.: | 21.060.20 | Valid Status: | valid |
| Issued Organization: | AQSIQ | Issued Date: | 1987-7-23 |
| Implemented Date: | 1988-5-1 | Abolished Date: | |
| Superseded Standard.: | Superseded Date: |
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