... : copper, iron, stainless, brass, aluminum,zinc alloy etc2.Style: new enamel, soft enamel, photo etched, silk screen printing, offset printing, zinc alloy injection ... requirement8.Thickness: optional9.Use: souvenir, promtional gift, decoration, collection,recogniton in a unity, group, team, community10.Price: moderate & resonable;competetive11.Quality ...