双层卷焊钢管应用广泛，品质要求高，必须进行100%检测。
Double layer coiling welded pipe is widely applied and demands high quality. It must carry out 100% inspection.
对双层卷焊钢管用镀铜钢带质量与组织性能进行了全面分析研究。
This paper presents research results on quality analysis, microstructure and properties of copper coated steel strip (CCSS).
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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