... low concentrations increases the mechanical hardness and the resistance against electrical wear, Specifications1,Over 5-year experience 2,AgCdO,AgSnOInO,AgNi ... , AgCdO, AgSnO, AgZnO, AgNi, AgSnOInO, Ag, Cu, etc ApplicationsLow Voltage Electrical Appliances and Households,such as Switch,Relay,KSD,Circuit Breaker ... to our company. Please do not hesitate to contact us! Tri-Metal Button Contact