... .plating silver 3.size:4'*6' 4.delivery quick metal photo frameProduct detail:<1>material:Zinc alloy.Iron,brass,Aluminum alloy ... -15 work days product warranty: our factory have made the photo frame and related product,they are selling in US market ... zinc alloy die casting products, then with polishing, painting, enamel, photo etching, printing, plating and other artist workings, it is made out ...