... /Cu, AgSnO2/Cu, AgCu/Cu.... Rivet are made by Cold Pressure Welding Machine, Main products include:Bi-metal Electrical Contacts: AG/Cu ... don't need other manufacturing technical methods(such as electroplating, welding etc). This method not only simplifies contact manufacturing, improves efficiency ... Tips , Contact Pointer, Moving Rivet, Contact Rivet, Relay Point, Relay Connector, Ele