... Product No./NameJJ-00092 / Aluminum die cast for high-end microphone cover with double plating Manufacture Process1) Mould/Tooling analysis, design ... , Zamak 5, Zamak 12; Aluminum 6061, 6063, 7075; (Plastic: ABS, PC, PS, PP, PVC, TPR, TPU, TPE, HDPE, PMMA) etc.5 ... : +/- 0.0005inch, also accord with GB6414 Aluminum die cast for microphone part with double plating