high frequency pipe bending machine 高频弯管机
high frequency pipe-bending machine 高频弯管机
high-frequency pipe bending machine 高频弯管机
high frequency pipe welding 高频焊管焊接
high frequency pipe welding process 高频焊管焊接过程
high-frequency pipe twisting mvery singleine 聚酰胺高频弯管机
high-frequency straight seam welded pipe 高频直缝焊接钢管
Ltd by breaking through traditional cold-bending forming change on OD 114 mm high frequency welded pipe units.
上海申花钢管有限公司在114高频焊管机组上突破传统冷弯变形方法，设计出强力焊管。
A reliable way to improve the quality of spiral pipe was the substitution of high frequency butt welding for HF lap welding.
高频对焊代替高频搭焊是提高中直径螺旋焊管质量的可靠途径。
The demand to welding process of high-frequency welding pipe is introduced, some related parameters proposed.
介绍了高频焊管对焊接工艺的要求，提出了有关工艺及技术参数。
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