... , AgNi/Cu, AgZnO/Cu, AgCdO/Cu, AgSnO2/Cu,etc. The base material: Red Copper,Brass, phosphorous bronze,etc. The useful: Widely ... systems,like the relay,circuit breaker,starter,temperature controller,and switch series,etc. Advantage:About the welding silver contact,our company ... any time,we will offer best serive all the time. Switch Contact Components