... machine/ welding machine/ac/dc welding machine AC/DC TIG/MMA/CUT welder/Welding Machine(Super200pi) 1. Advanced design, high invert frequency ... , steady and intensive arc, reliable and durable, easy for maintenance;4. Excellent control performance, multiple functions ... strongly resistance to shock loading,nondeformable.Super200PI:IGBT welding machine/inverter welding machine/ ac/dc welding machine IGBT ...