trimetal rivets,trimetal contacts face material:Ag,AgNi,AgCdO,AgSn02,AgSnO2In03,AgZnO base material: ... CuNi Our company provides all sizes of silver rivets, silver contacts and the base material of the product is usually Cu ... , regulator, starter, buzzer)AgSnO2In2o3 used in switches Trimetal rivets(trimetal contacts)