Cell Phone Chain/Mobile Phone Charm 1.material: Zinc alloy, Brass, Silver, PVC and ... For this manufacturing process, we mainly use the material zinc alloy. 3). Photo etch For this manufacturing ... process, we use the material brass. 4). Print (Off-set print & Silk ... alloy, aluminum, copper. 5). Soft PVC (soft PVC material is only used for this process). 6). Pewter ( ...