Automatic Circular CO2 MIG Welding Machine For Steel Pipe Cover DESCRIPTION This machine is specially customized for circular welding steel pipe .It adopts panasonic MIG welder as the welding power source. The stepping motor drives the welding gun to conduct constant speed movement. The moving speed and length is set through PLC; use pneumatic pressing plate to press to ensure the stability and consistency of welding; the action program of the whole machine is controlled by