Our quality control center has advanced quality testing instruments, such as Brinell hardness tester, Rowell hardness tester, impact testing machine, tensile testing machine, electron microscope, spectrometer, salt spray testing machine, as well as comprehensive tolerance measuring instruments. Experienced quality inspection personnel will develop strict sampling inspection standards to ensure that each batch of orders meets the requirements. We can complete testing of 0.05µm tolerance, various mechanical and chemical properties, surface coating thickness, wear resistance, corrosion resistance oxidation resistance, etc. We will attach a quality inspection report to each batch of orders upon request.