... etc 5Type: Solid rivet, Bimetal rivet, Button rivet, Tri-metal rivet, etc. Characteristic: 1. Silver rivet and Ag/Cu bimetal rivet: Pure silver ... sets for making Contact Rivet include Tri-metal rivet machine from Germany, Bi-compounded rivet machine, Colored Microscope, ... large. Real Products Main Specification of Bimetal Rivet and Solid Rivet Production Workshop Laboratory OurLocation Our company is ...