... fittings,nozzles,sparyers,Precision screw machining.... Our dedication, plus the company's knowledge and experience,have resulted in ... zinc. 2) Surface treatment: nickel plating, zinc plating and chrome plating. oxidation3) Able to produce parts with ... Main processes: groove, milling, grinding, drilling, threading, broaching and knurling. Turning, Drilling, Polishing5) Equipment: CNC lathe, CNC ...