ERW steel pipe/tube making machine ERW steel pipe/tube making machine, the process is unwinding the steel coil and make the head and tail of the coil butt-welded in the strips preparation section. Then the strips fed into accumulator and pulled out of the accumulator at a constant speed passed...

Spiral welded pipe machine Spiral welded pipe production line is used to produce big diameter pipes by spiral welding method. By decoiler to uncoil and level the steel coil, and send the strip to forming machine by certain angle, then bend the pipe by certain angle based on three-roller formi...