结构用无缝钢管

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1、中华人民共和国国家标准结构用无缝钢管SeamlesssteelpipesforstructuralpurposesGB8162-87中华人民共和国冶金工业部批准1987-07-02批准1988-07-01实施546卞杯准适用于一般结构，机械结构用无缝90,钢节分为热轧(拚压、扩、和冷拔(轧〕两种热轧(挤压、扩)钢管的外径和雕P,T应符合表!的规1尺寸、外形及皿，定，冷拔(轧)润ilr的外径和壁厚应符合k<3的规定。外径和壁厚根据需方要求‘可生产表1和表2规定以外的婀件鹅筑们.品种玻1外朴八电限

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