metal coin,coins for sale,coin collection,coin blanks,souvenir coin,cheap challenge coin,token coin,trolley coin,antique coin: MaterialZinc alloy, brass, copper, iron, pewter, stainless steel, etc.TechniqueDie-casting, engraved, painted, silk screen, offset printing, etc.PlatingGold, silver, nickel, brass, copper, antique plating, misty..