IGBT welding machine 1.IGBT inverter tech,stable performance 2.Stable welding arc,llittle spatter 3.Energy star 4.CE IGBT welding machine1.IGBT inverter tech,current-mode control,reliable quality,stable performance2.Closed loop feedback control,constant voltage output,workable under network voltage fluctuation within ±15%3.Stable welding arc, little spatter,deep penetration,beautiful shaping,high ...