... kinds of AC, DC contactor and medium & small-sized circuit breaker AC&DC Contact components by weldingcan apply to different kinds of AC, DC contactor and ... materials:Various copper ,brass , bronze, iron and steel stamped supports with brazed or welded or riveted contact tips.The contact tips ... as follows :AgC,AgCdO,AgNi,AgSnO2,AgSnO2ln2O3,AgZnO,AgCuO ,etc. AC&DC Contact components by welding