... CCC,CE certificate 3.elegant design 4.firmly assemble Durable inverter arc welder-MMA-200 ♥Use: light manufacturing, maintenance, civil steel ... carbon steel, carbon steel, alloy steel, etc.; ♥ Advanced inverter technology: Inverter frequency up to 100KHz, conversion rate of 85%, no- ... from down side.Technical parameter: Item No:MMA-200Voltage:220V±10%Input Capacity:5.6KWFrequency:50/60HZNo-load Voltage: ...