... WELDER) 1.IGBT inverter and soft-shift technology, high efficiency for the whole machine;2. Portable, air cool, thermostatic protection,energy ... saving, easy for maintenance; 3. With built-in wire feeder;4. Welding current ... steel, alloy steel, and stainless steel;6. Suitable for flux (Gasless) welding wire and gas shielded MIG/MAG welding wire ...