... ,switch,contactor,breaker,starter,KDS 4,ISO9001,SGS Zinc Alloy Button and Electrical Component Silver Contact Place of origin:Suzhou,China ... /Cu,Cu,AgNi,AgSnO,AgZnO,AgSnOInO,AgWC,CuW,etc)Characteristics:Button contact material offer flexible design.Bing able to manufacture the ... : Carton Package. Fully according to customers specific requirement Zinc Alloy Button and Electrical Component Silver Contact