... 2.DC hand electrode 3.Use MOS/IGBT technnology 4.Less splash, good weld appearance MMA200 of MMA ARC WelderTechnical ... (mm)440*230*320Main Features of MMA-2001.Adopt with advanced MOS/IGBT inverter technology, save energy, protect the environment ... over-voltage and over-current, thermostatic protection, moveable welding cable.4.Strong welding permeability, less splash, good weld appearance, sound ...