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| International Standard Category: Tunnelling and tubing equipment |
YS/T 460-2003 High - Pressure ring in-the-hole drill rigs
高气压环形潜孔钻机 ;
| Category No.: | 73.100.10 | Valid Status: | abolished |
| Issued Organization: | NDRC | Issued Date: | 2003-12-29 |
| Implemented Date: | 2004-5-1 | Abolished Date: | 2022-01-10 |
| Superseded Standard.: | Superseded Date: |
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