... the Inverter DC arc welding machine. 3.Deliver time 15-30 days. 1. Specially for welding of thin and MID- ... 400 Input voltage(V): 3-380 Frequency(Hz): 50/60 Phase: 3 Input capacity(kVA): 21 Welding voltage(V): 18- ... convenience, anti-interference, good driving capabilities. Inverter technology: Use of three phase rectifier power supply technology with reactance compensation, current output steady ...