The surface quality of the spiralweldpipe is as so critical a quality assurance element as its interior quality.
螺旋焊管的表面质量与其内在质量同样是焊管质量的重要保证因素。
2
In the production of spiralweldpipe, the quality of the online automatic submerged arc welding is of significant importance to the final steel pipe product.
在螺旋焊管的生产过程中，在线埋弧自动焊的焊接质量对最终钢管产品的质量具有十分重要意义。
3
The discussion involves such aspects as the cause of strip folding occurring in butt-welding process of spiralweldpipe, negative influence by such failure on pipe quality and preventive actions.