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| Professional Standard Category: Professional Standard - Urban Construction |
CJ 20-1987
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| Category No.: | CJ | Valid Status: | superseded |
| Issued Organization: | Issued Date: | ||
| Implemented Date: | Abolished Date: | ||
| Superseded Standard.: | CJ 41-1999 Method of test for water balance in industrial enterprises |
Superseded Date: | 1999-6-4 |
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