... ARC Welder 1.Sound-proof. 2.DC hand electrode 3.Use MOS/IGBT technnology 4.Less splash, good weld appearance MMA200 of MMA ARC Welder ... (mm)440*230*320 Main Features of MMA-2001.Adopt with advanced MOS/IGBT inverter technology, save energy, protect the ... adjusted stepless, high efficiency.3.Fan-cooled, automatic protection of over-voltage and over-current, thermostatic protection, moveable ...