... Cu, AgCu/Cu.... Rivet are made by Cold Pressure Welding Machine, Main products include:Bi-metal Electrical Contacts: AG ... t need other manufacturing technical methods(such as electroplating, welding etc). This method not only simplifies contact manufacturing, improves ... can surpass one billion pieces annually. Rivets, Silver Rivets,Contact Tips , Contact Pointer, Moving Rivet, Contact Rivet, Relay Point ...