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| International Standard Category: Bolts, screws, studs |
QJ 837-1984 Anti-looseness Method for Bolt and Screw Fastening
螺栓和螺钉连接的防松方法 ;
| Category No.: | 49.030.20 | Valid Status: | valid |
| Issued Organization: | Issued Date: | 1984-11-30 | |
| Implemented Date: | 1985-1-1 | Abolished Date: | |
| Superseded Standard.: | Superseded Date: |
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