... component 12 years experiences Product No./NameJJ-00094 / Zinc die cast for high-end microphone cover with double plating Manufacture Process1 ... Zamak 12; Aluminum 6061, 6063, 7075; (Plastic: ABS, PC, PS, PP, PVC, TPR, TPU, TPE, HDPE, PMMA) etc.5) Surface Treatment ... ...6) Tolerance: +/- 0.0005inch, also accord with GB6414 Zinc die cast, Zinc die casting part, Zinc casting with double plating