... fittings, elbow, tee, nut; Auto-lathe turning precision part: precision electronic parts, fasteners, and other jeweler accessories(3) ... machine, polishing equipment, etc.(4) Main inspection devices: digital projector, Rockwell hardness tester, hydraulic valve test bench, ... HVACs B: supply precision machining parts for a Netherlands listed company C: supply precision inserts for Korea LG Mobile Phone ...