... AgSnO2/Cu etc 3.Usage: various relays,contactors,small switches and temp-controller Switch contact of copper and silverMain Materials:We ... visible.2. No stratification, burr, sripe,pit etc in the side of rivet head3. no liable to oxidization on its surface4 ... Field:Our Rivets series electrical contacts is widely used in small and medium-sized current contactor,starter,temperature controller, ...