... 270,NBC-350, NBC-500 Melting pole gas shielded welding machine MAG welder, MIG welder, NBC-270,NBC-350, NBC-500 Melting ... wires.4.Small splash and good welding formation. Application: 1.This machine is a flat CO2 silicon arc ... MIG weld),and mixture gas protecting welder (MAG weld) .2.It can carry out the whole position and semi-automatic welding ... -350, NBC-500 Melting pole gas shielded welding machine