... cloisonne,etched... Features of custom metal coins:Metal coin and souvenir metal coin!1) Size: different size as per ... /aluminum4) Plating : Can be gold , nickel , copper , black nickel and antique finishing5) Color: All colours are avaielable6) Attachment : Various ... gold, silver, antique silver, matt silver, nickel, black nickel, brass, copper, dyed black, chrome, dual plating, or any others. 6) ...