... Inverter ARC Welding Machine 1.sound-proof 2.DC hand electrode 3.MOS/IGBT technnology 4.less splash, good weld appearance Digital MMA-200 Inverter ARC Welding Machine ... Digital MMA-2001.Adopt with advanced MOS/IGBT inverter technology, save energy, protect the environment, ... over-current, thermostatic protection, moveable welding cable.4.Strong welding permeability, less splash, good weld appearance ...