1.switch contact 2.Ag Ag/Cu FAg/Cu Agni/Cu AgSnO2/Cu etc 3.Usage: various relays,contactors,small switches and temp-controller Switch contact of copper and silverMain Materials:We can provide you the rivets based on the following materials:Ag AgCdO12 AgCdO12/Cu AgCdO15 AgCdO15/Cu AgNi10/Cu AgSnO2/Cu AgZnO/Cu Ag/Cu Quality Control:1. no oil,indentation, pit circle printed, needle stain, tearing, ...