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| International Standard Category: Marine ventilation, air conditioning and heating systems |
CB 457-1994 Fireproofing Ventilation Head of Oil Hold
油舱防火透气头 ;
| Category No.: | 47.020.90 | Valid Status: | superseded |
| Issued Organization: | China State Shipbuilding Corporation | Issued Date: | 1994-02-01 |
| Implemented Date: | 1993-7-1 | Abolished Date: | |
| Superseded Standard.: | CB/T 4495-2019 |
Superseded Date: | 2019-11-1 |
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