... : stainless steel, carbon steel, steel ,brass,bronze ,copper, hardened metal, precious metal , aluminum, alloys etc2) Main equipment: 39sets of CNC lathes, 19sets ... , Recess Depth Gage, Cylindricity Measuring Instrument,Rockwell hardness Test Machine, Roughness Measuring Instrument,hardness tester, concentricity tester etc4) Surface treatment: electroplating,anodizing,polishing, powder ...