At present, the following ways are within our inspection methods lists. We will test the material and quality of each suppliers under the below methods as arranged in our quality control list.


  • Chemical Composition:  Chemical Buret test/Spectral analysis
  • Dimension:  Conventional gauge/Go-No go gauge/Three-coordinate Measuring Machine
  • Microstructure: Microscope Metallographic Analysis
  • Mechanical Property: Hardness test/Mechanical property inspection/impact inspection
  • Structure tightness:  Destruction Test
  • Crack Inspection: Ultrasonic test(U.T.), X-ray, Magnetic powder Inspection(M.T.), Liquid saturation
  • Hardness: Sclerometer (Hardometer)
  • Zinc-plated thickness: Thick meter


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