... MMA welding machine: wide use range, easy and quick in arc initiating, stable welding quality, can preset current. DC Inverter MMA Welding machineModel ... of arc initiating and arc ending, which guarantee the best welding quality.5)Its dependable protection against the Imperfect Phase, voltage ... operation, economic, durable and reliable. Packing: Standard carton DC Inverter Welding machine (ZX7-315)