... welding machine 315DL Power can be used:single phase 220V, 1.6-4.0mm rodthree phase 220V , 1.6-4.0mm rod double ... phase 380V , 1.6-5.0mm rod three phase 380V, , 1.6-5.0mm rod When ... work with different welding rod!Advantages:1. Advanced IGBT inverter technology, stable performance, inverter frequancy can arrive to 100KHZ,85% working efficiency ...