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| International Standard Category: Iron and steel products in general |
GB/T 221-2000 Notations for designations of iron and steel
钢铁产品牌号表示方法 ;
| Category No.: | 77.140.01 | Valid Status: | superseded |
| Issued Organization: | CSBTS | Issued Date: | 2000-04-01 |
| Implemented Date: | 2000-1-1 | Abolished Date: | 2009-04-01 |
| Superseded Standard.: | GB/T 221-2008 Notations for designation of iron and steel |
Superseded Date: | 2009-4-1 |
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