... /Cu, AgZnO, AgNi, AgCdO, etc.AgNi Contact:FeaturesElectrical contact performance can be enhanced by using powder agglutinated ... by powder metallurgical production, with low and stable contact resistance, high hardness and mechanical strength(3) ... temperature controller,switches,etc.undercurrent contact devices,microswitches and precision instrument round head rivets,bimetal contact rivet,silver contact