... AC function to weld stainless steel, carbon steel, alloy steel, copper, ect metal, use DC function to weld aluminium, and aluminium ... Protection Degree:IP23 Welding Thickness:0.5-12mm Dimension:580x334x480MM Weight:32KGS Arc Starting:HF Pulse duty factor: 20 ... -welding gas blow time:2-10S Remote system interface: No welding thickness: (AC) 3mmOEM, ODM is also supplied. Inverter AC/DC TIG 200 welding ...