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Standard Insuued on: 1993-06 |
Category No.: | JB | Valid Status: | superseded |
Issued Organization: | MMB | Issued Date: | 1993-06-01 |
Implemented Date: | 1994-1-1 | Abolished Date: | |
Superseded Standard.: | NB/T 47040-2013 Man-hole and Hand-hole of Boiler Set |
Superseded Date: | 2014-4-1 |
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