DC Inverter Welding Machine: Mig Welder use VMOS h/f inverter technology quick and ... frequency reaches 100KHZ, quick dynamic response;2.Use strong pulse to initiate arc, high arc initiating success rate, ... development capacity, our product range covers inverter MMA, TIG, MIG/MAG, PULSE TIG, AC/DC TIG, PLASMA CUTTING series. And ... service is good. DC Inverter Welding Machine: Mig Welder(NBC-200S)