... 2,AgCdO,AgSnOInO,AgNi,AgZnO,AgCu,Cu 3,Usage:relay,switch,contactor,breaker,thermostat 4,ISO9001,SGS Contact type ... , AgSnO2 and AgSnO2 In2O3 is higher and it is more difficult to processing these two materialsUsage:Breaker,relay,contactor,timer ... ,thermostat,train,swithes and other home appliances and electrical products.Solid, Composite( ...