... casting,stamping,plating,pant,enamel; 3.Use:promotion gift 2011 New Arrival Metal PinMaterial & process:Zinc alloy,brass,iron,copper( ... Process Stamped, Zinc alloy injection, Photo-etched, Offset print, Silk screen print, Laser engrave. Plating Nickel, Gold, Silver, Bass ... Aluminum, Soft PVC, Stainless iron. Attachment Safety pin, Pin with clutch, Ball chain, Magnet, Ribbon, Dog snap. Packaging Poly ...