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| Standard Insuued on: 1990-08 |
GB/T 12459-1990 Steel butt - welding seamless pipe fittings
钢制 对焊无缝管件
| Category No.: | GB | Valid Status: | abolished |
| Issued Organization: | STSB | Issued Date: | 1990-08-21 |
| Implemented Date: | 1991-5-1 | Abolished Date: | 2005-08-01 |
| Superseded Standard.: | GB/T 12459-2005 Steel butt-welding seamless pipe fittings |
Superseded Date: | 2005-8-1 |
GB/T 12461-1990
GB 2423.39-1990
GB/T 12458-1990
GB/T12498-1990~GB/T12499-1990
GB/T 12453-1990
GB/T 12498-1990
GB/T 12459-1990
GB/T 12500-1990
GB 3836.9-1990
GB/T 12456-1990
GB/T 12457-1990
JJG 706-1990
TB 1869-1990
TB/T 2130.6-1990
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