...焊钢管combination gas metal-arc and submerged arc welded pipe 2.3.66双缝埋弧焊钢管double seam submerged-arc welded pipe 2.3.67双缝熔化极气体保护电弧焊钢管double seam gas metal-arc welded pipe ..
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双缝埋弧焊钢管
Double slit submerged arc welded steel pipe
以上为机器翻译结果，长、整句建议使用 人工翻译 。
螺旋焊管是以带钢卷板为原材料，经常温挤压成型，以自动双丝双面埋弧焊工艺焊接而成的螺旋缝钢管。
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.
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