... feature:- Latest electronic parts and Micro-processor control.- Integrate spot welder, arc welder, battery charger, vehicle starter, melting welder ... into one unit.- Realize spot weld, washer weld, pulling weld, shrinking, electri weld, melting ... or triangle steel bits, earth clamp, welding head for spot weld, waggle wire and washer weld, head tranfer, graphite ...