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| International Standard Category: Cement. Gypsum. Lime. Mortar |
GB 10238-1998 Oil well cement
油井水泥 ;
| Category No.: | 91.100.10 | Valid Status: | superseded |
| Issued Organization: | State Qualtiy Technical Supervision Bureau | Issued Date: | 1998-10-20 |
| Implemented Date: | 1999-4-1 | Abolished Date: | 2006-03-01 |
| Superseded Standard.: | GB 10238-2005 Oil well cement |
Superseded Date: | 2006-3-1 |
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