1. Multi-process welding, MMA, MIG, TIG, CAC-A; 2. Double Pulse, built-in water tank, Al ... . CE,SGS, ISO9001, CCC MIG-500P Double Pulse Aluminum Inverter Digital Welding Machine Order No.ZT5751Product ModelMIG-500PInput Voltage/Frequency3~380V ... .6, Design for welding aluminum plate. Start and end the arc easily. No crater defect.7, No spatter and good welding ...