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| International Standard Category: Iron and steel pipes |
SY/T 6657-2006 PVC lined steel specification
聚氯乙烯内衬钢管规范 ;
| Category No.: | 23.040.10 | Valid Status: | abolished |
| Issued Organization: | NDRC | Issued Date: | 2006-07-10 |
| Implemented Date: | 2007-1-1 | Abolished Date: | 2011-10-01 |
| Superseded Standard.: | Superseded Date: |
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