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Standard
| GB/T 12459-1990 Steel butt - welding seamless pipe fittings (English Version) |
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Detail of GB/T 12459-1990
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Introduction of GB/T 12459-1990
本标准规定了碳钢、合金钢和奥氏体不锈钢制对焊无缝管件（包括弯头、异径接头、三通、四通、管帽）的尺寸、公差、技术要求、检验和标志。本标准适用于石油、化工、水电、冶金、纺织等部门的管道工程用碳钢、合金钢和奥氏体不锈钢制对焊无缝管件。
Contents of GB/T 12459-1990