... AC/DC square wave pulse tig welding machine TIg315P ACDC a.CE,3C,RoHS ... technology Inverter AC/DC square wave pulse tig welding machine TIg315P ACDCWeldable Materials:Mainly uses in aluminum and ... aluminum magnesium alloy welding,also suitable for carbon steel., alloy steel, ... a maximum of 85% input voltage(V,HZ)Single-phase 220±15% 50/60Rated Input Capacity (KVA)4 ...