Cell Phone Chain/Mobile Phone Charm 1.material: Zinc alloy, Brass, Silver ... lines as below: 1). Stamp (die struck) For this manufacturing process, we can use the following materials ... , aluminum. 2). Die cast (injection die cast) For this manufacturing process, we mainly use the material zinc alloy ... 4). Print (Off-set print & Silk print) For this manufacturing process, we can use the materials: iron, ...