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Standard Insuued on: 2006-12 |
Category No.: | JB | Valid Status: | superseded |
Issued Organization: | NDRC | Issued Date: | 2006-12-31 |
Implemented Date: | 2007-7-1 | Abolished Date: | |
Superseded Standard.: | JB/T 7171-2011 Hand-held internal combustion rock drills |
Superseded Date: | 2012-4-1 |
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