... welding ,ect.1.metal tube welding: such as copper tube, steel tube, and aluminum tube’s butt welding ... heating speed, high efficiency.(2).simply put the silver solder piece between head and the substrate.(3). energy saving ... welding.(6). heating uniform, so no lack solder joints and leakage solder joints. 3.carbide saw blade welding:diamond ... full after welding. Induction Welding Machine for Copper Tube