... tightness Product No./NameJJ-00068 / Aluminum precision die casting part for auto and motor accessories Manufacture Process1) ... testing & confirm the sample3) Die-casting rough parts4) Precision machining: CNC lathes, milling, drilling, grinding etc5) Surface treatment: ... . 5) 27 product lines of post processing facilities with CNC machining, turning, milling, tapping, drilling, polishing, punching, ...