Metal Coin,Custome Medal 1,Material: Zinc alloy,Brass,Iron 2,Size:50*50 ... OEM Metal Coin,alloy coin,silver coin,gold coin,fashion Medal*************************************************************1. Usage for Promotional,business gifts.2. All Material ... 3.material: iron, copper, alloy, aluminium, tin etc4.technics: enamal, soft enamal,painted, epoxy, print, sand-blasting etc5.plating: Nickel, chrome ...