... AgNi,AgZnO,AgCu,Cu 3,Usage:relay,switch,contactor,breaker,thermostat 4,ISO9001,SGS Contact type: rivet/button. According to ... cadmium oxide will improve the welding resistance of the contactor. Its typical applications include low voltage contactors, relays, ... is more difficult to processing these two materialsUsage:Breaker,relay,contactor,timer,thermostat,train,swithes and other home appliances ...