high-frequency straight seam welded pipe 高频直缝焊接钢管
frequency straight seam welded pipe 高频直缝焊接钢管
straight-seam welded pipe 直缝焊管
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。
The company now has six high-frequency straight seam welded pipe units, three hot-dip galvanizing line.
公司现拥有六条高频直缝焊管机组，三条热镀锌生产线。
The corporation is specialized in manufacturing straight welded tubing and hot rolling no-seam steel pipe.
公司是专业生产直缝焊管及热扩钢管的企业。
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