Hebei TUBO Machinery Co., Ltd. manufactures welded ERW Tube Mill / Pipe Mill, LSAW (JCO) Pipe Mill, Cold Roll Forming Machine and Slitting Line, as well as auxiliary equipments for more than 15 years, we developed and grew in line with constantly evolving market requirements.
With morden design software and more than 130 sets all types of CNC machining equipments, TUBO Machinery has been continuously developing and reinforcing its know-how in the field in time.
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The main difference between the two welded pipes of spiral welded pipe and straight welded pipe is the difference in welding form. Spiral welded pipe is a low carbon carbon structural steel or a low alloy structural steel strip rolled into a tube blank with a certain helix angle (also called form...
High frequency straight seam welded pipe (ERW) is the hot rolled coil plate formed by the forming machine, using the skin effect and proximity effect of high frequency current to heat and melt the edge of the tube blank, and pressure welding under the action of the squeeze roller To achieve produ...