... commemorative coins, numismatic coins Product namePersonal new university masonic metal coin for souvenir or commorative Materialzinc alloy,brass, ... nickel, black nickel, brass, copper, dyed black, chrome, dual plating, etc.Size35mm,40mm,45mm,50mm or customizedThickness1 ... design various custom artwork10.Extensive production experiences in metal crafts field11.Professional advices on meterial,process, ...