Inverter ARC Welding Machine 1.sound-proof 2.DC hand electrode ... technnology 4.less splash, good weld appearance Digital MMA-200 Inverter ARC Welding Machine Technical Specification modelspecificationDigital MMA-200Rated Input Voltage ... Features of Digital MMA-2001.Adopt with advanced MOS/IGBT inverter technology, save energy, protect the environment, light and compact, portable ...