... material of car body won't be distorted during welding and satisfy other special requirement for modern repair techniques ... and external parts, safety and reliably running.1. Welding and spot welding continuously.2. Can weld STEEL, STAINLESS STEEL, ALUMINIUM ... width/the current magnitude/the wire-feeded rate.4. Optional welding wires: STEEL, STANILESS STELL, ALUMINIUM, THLE/UHTS(BORON STEEL). ...