Cell Phone Chain/Mobile Phone Charm 1.material: Zinc alloy, Brass, Silver, PVC and so on. 2.good quality. Please let me introduce our ... : brass, copper, iron, aluminum. 2). Die cast (injection die cast) For this manufacturing process, we mainly use the material zinc alloy ... the material brass. 4). Print (Off-set print & Silk print) For this manufacturing process, we can use the materials: iron, brass ...