... , Machinofacture, Auto Industry, Vessel, High Pressure Vessel, Shipbuilding,Offshore Operation,etc. Suitable for big current welding.2.Applicable Materials ... soft switch and power factor alignment technique. Ensure stable welding under voltage fluctuation. High power factor, less EMI; ... factor; 3).Synergic adjusting,matching various full automatic welding machine; 4).Save up to 10 sets of customized ...