... , brass , zinc alloy , gold , silver and so on .2) Size : 40mm Dia..., and can be changeable as ... copper , green bronze , silver , antique silver plating and so on .5) Color Reference : (Pantone Color Chart) -- With soft ... copper , green bronze , silver , antique silver plating and so on .5) Color Reference : (Pantone Color Chart) -- With soft ... good service are our competitve advantages . Metal tag