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| Chinese National Standard Category: Pig iron |
| English Title: | Gray iron castings for pipe fittings |
| Chinese Title: | 灰口铸铁管件 |
| Standard No.: | GB 3420-1982 |
| Category No.: | H41 |
| Issued by: | China State Bureau of Standards |
| Issued on: | 1982-12-31 |
| Implemented on: | 1983-11-1 |
| Status: | superseded |
| Superseded by: | GB/T 3420-2008 Gray iron castigs for pipe fittings |
| Superseded on: | 2009-5-1 |
| Abolished on: | 2009-05-01 |
| Superseding: | YB 428-1964 |
| Word Count: | 18000 words |
| Similar Standards: | DB21/T 2652-2016 YB/T 5296-2011 YB/T 4170-2008 GB/T 20932-2007 YB/T 5125-2006 GB 4223-2004 GB/T 718-2005 GB/T 1412-2005 AQ 2002-2004 YS/T 429.2-2000 YB/T 5296-2006 GB/T 717-1998 GB/T 4223-1996 SN 0581-1996 SN/T 0508-1995 YB/T 804-1995 YB/T 5211-1993 YB/T 5125-1993 YB/T 5210-1993 YB/T 801-1993 |
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