... can apply to different kinds of AC, DC contactor and medium & small-sized circuit breaker AC&DC Contact components by weldingcan apply ... different kinds of AC, DC contactor and medium & small-sized circuit breaker, etc.Main Application scope:Mainly used in contactors, relays, circuit ... as follows :AgC,AgCdO,AgNi,AgSnO2,AgSnO2ln2O3,AgZnO,AgCuO ,etc. AC&DC Contact components by welding