... .4, Especially suitable for 1-15mm spot welding.5, Riveting,spot welding,pattern welding,dot welding,etc.6,Whole-set excellent elements assembly, ... ,Fix the rhinestone on clothes,shoes,trinkets,the spot welding for plastic part,screw implanting,rivet joint.8,widely ... used for welding automotive interior trim and household appliance ultrasonic heat gun ...