... equipment: CNC turning and milling machine, automatic lathe machine, thread rolling machine, drilling machine, tapping machine, etc 2 ) Measuring & testing equipment: Projector , concentricity tester, hardness tester, roughness tester, torsion tester, tensile force tester ... , car, bike , computer, optical fiber products , medical equipment, mobile phone, Camera ,gas stove, gas heater, furniture etc.