• Spiral welded pipe is a strip coil as raw material, often warm extrusion molding, to automatically double-wire submerged arc welding process double-sided spiral welded pipe joints.

    螺旋是以带钢卷板原材料经常挤压成型自动双丝双面弧焊工艺焊接而成的螺旋缝钢管。

    youdao

  • Spiral welded pipe is a strip coil as raw material, often warm extrusion molding, to automatically double-wire submerged arc welding process double-sided spiral welded pipe joints.

    螺旋是以带钢卷板原材料经常挤压成型自动双丝双面弧焊工艺焊接而成的螺旋缝钢管。

    youdao

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