induction welding machine/equipment,MF induction welding machine,Electronic induction coil welding,Spot welding,butt welding, Induction welding machine:Electronic induction coil welding Spot welding,butt welding,stitch welding,seal welding Automatically or semi- ... water kettle mainly refers to the braze welding of stainless steel flat base, aluminum sheet and tubular electric heating elements of ...