Lithium-ion,Ni-MH, nickel-cadmium, button battery spot welder spot welding machine Multi-pulse precision ... spot welding machine Lithium-ion,Ni-MH, nickel-cadmium, button battery spot welderElectronic wire, sheet metal, all kinds of metal ... welding.2, The application of weldingLithium-ion battery (group), Ni-MH battery (group), nickel-cadmium battery (group), buttonbatteries. Electronic wire, sheet ...