... 3) Surface treatment: stamping and polishing cell phone strap1)Materials:zinc alloy, brass, stainless steel, aluminum, plastic are available as customers' demands ... , thickness1.5mm, or as your design.3)Surface treatment: Die-casting, painting, epoxy, enamelling, printing, etching, engraving, polishing etc., as ... quotation as we are an OEM factory .Thanks.Similar items: zinc alloy cell phone strap