... /Cu, AgSnO2/Cu, AgCu/Cu.... Rivet are made by Cold Pressure Welding Machine, Main products include:Bi-metal Electrical Contacts: AG ... for making Contact Rivet include Tri-metal rivet machine from Germany, Bi-compoundedrivet machine, Colored Microscope, 3D coordinator Apparatus, Hardness ... Test Machine, etc. We can develop and manufacture them according ...