... wave control; 2. Request for high current; 3. suitable for MAG/CO2 welding of low carbon steel and low alloy steel ... wave control, optimized the wave and arc character of CO2/MAG. Wide adjusting range, stable at both high and low current ... simple and easy to operate. Crater filling, tacking welding, C02/MAG swith, synergic/independent adjustment, solid wire/flux wire switch functions ...