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| International Standard Category: Cement. Gypsum. Lime. Mortar |
GB/T 21371-2008 By-product gypsum used in cement
用于水泥中的工业副产石膏;
| Category No.: | 91.100.10 | Valid Status: | superseded |
| Issued Organization: | AQSIQ; SAC | Issued Date: | 2008-1-9 |
| Implemented Date: | 2008-8-1 | Abolished Date: | |
| Superseded Standard.: | GB/T 21371-2019 By-product gypsum used in cement |
Superseded Date: | 2020-9-1 |
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