1, Mosfet technology 2, Small size, light weight 3,High duty cycle, High working effciency 4, Excellent welding performance * ... stainless steel, carbon steel, alloy steel, copper, ect metal, use DC function to weld aluminium, and aluminium alloy.Input power Voltage ... :0-2S Post-welding gas blow time:2-10S Remote system interface: No welding thickness: (AC) 3mmOEM, ODM is also supplied. Inverter AC/DC ...