... : iron, copper, alloy, aluminium, tin etc4.technics: enamal, soft enamal, epoxy, print, sand-blasting etc5.plating: Nickel, chrome, gold, copper etc6 ... : 500 pcsg/w: 12 kgssize of ctn: 36x32x20cm metal coin,epoxy coin,trolley coin,blank metal coin, round coin