... , Construction, Vessel, Shipbuilding, Offshore operation, Power IndustryApplicable materials:Low/high alloyed steel, carbon steel, stainless steel, aluminum, alloy ... 3.Double motors wire feeder with wire speed feedback function to make sure stable welding speed;4.VRD function prevent ... welding current&voltage, alert signal for ARC breaking and short circuit,etc;(Easy for QC data record and control ...