production weld test 成批焊接检查 ; 焊缝坏性能试验
weld tube production 焊管生产
weld pipe production 焊管生产
weld pipe production line 焊管生产线
Spiral weld pipe production line 螺旋焊管生产线
Weld failures when they do occur, either during fabrication or service, involve considerable rework, apart from production, time and material losses.
焊缝开裂，当在制造或服务期间时，他们发生，除生产、时间和材料损失之外，介入可观的重做。
TIG welding can be used in precision welding and high-quality welding occasion, which can obtain high quality weld and has been extensively used in production.
TIG焊一般适用于精密焊接及高质量焊接场合，它可以获得优质的焊缝，在生产中已经取得了广泛的应用。
But with the same length of straight seam pipe than the weld length of 30 ~ 100%, and lower production rate.
但是与相同长度的直缝管相比，焊缝长度增加30 ~ 100%，而且生产速度较低。
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