Metal Coin,Custome Medal 1,Material: Zinc alloy,Brass,Iron ... : Engraving with colours. 4,Weclome OEM Metal Coin,alloy coin,silver coin,gold coin,fashion Medal*************************************************************1. Usage for Promotional,business gifts ... material: iron, copper, alloy, aluminium, tin etc4.technics: enamal, soft enamal,painted, epoxy, print, sand-blasting etc5.plating: Nickel, ...