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