... bimetal, trimetal and many different material like AgNi/Cu, AgSnO2/Cu, AgCu/Cu,AgZnO/Cu .. Rivet are made by Cold Pressure Welding Machine ... , and the output can surpass one billion pieces annually. Rivet, Silver Rivet, Bimetal Rivet, Tri-Metal Rivet, Solid Rivet, Moving Rivet, Contact Rivet, Relay Point, Relay Connector, Ele