... ./NameJJ-00092 / Aluminum die cast for high-end microphone cover with double plating Manufacture Process1) Mould/Tooling analysis, design ... to 1250T. 5) 27 product lines of post processing facilities with CNC machining, turning, milling, tapping, drilling, polishing, ... sandblasting etc...6) Tolerance: +/- 0.0005inch, also accord with GB6414 Aluminum die cast for microphone part with double plating