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| International Standard Category: Iron and steel pipes |
GB 3420-1982 Gray iron castings for pipe fittings
灰口铸铁管件 ;
| Category No.: | 23.040.10 | Valid Status: | superseded |
| Issued Organization: | China State Bureau of Standards | Issued Date: | 1982-12-31 |
| Implemented Date: | 1983-11-1 | Abolished Date: | 2009-05-01 |
| Superseded Standard.: | GB/T 3420-2008 Gray iron castigs for pipe fittings |
Superseded Date: | 2009-5-1 |
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