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| International Standard Category: Iron and steel pipes |
JG/T 225-2020 Corrugated metal ducts for prestressed concrete
预应力混凝土用金属波纹管 ;
| Category No.: | 23.040.10 | Valid Status: | valid |
| Issued Organization: | AQSIQ; MOHURD | Issued Date: | 2020-01-13 |
| Implemented Date: | 2020-8-1 | Abolished Date: | |
| Superseded Standard.: | Superseded Date: |
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