... pulling weld, shrinking, electri weld, melting weld for copper wires and steel wires, battery charging and vehicle ... Adjustable welding current of electric welder specially suitable for thin steel plate.- Solid state relay replaces AC ... or triangle steel bits, earth clamp, welding head for spot weld, waggle wire and washer weld, head ... double side welding gun, booster cable. Multi-function spot welder