... Offered ; Design Service Offered ; Buyer Label Offered. enamel key chain, 1) Materials: Iron , brass , zinc alloy , gold ... required .3) Design & Logo : Can according to clients' requirements.4) Electroplating / finish : Nickel ,black nickel , imitation gold , ... With soft enamel , hard enamel / cloisonne ,pad or screen printing , by paper sticker or epoxy coating surface .6) Various attachments for ...