The best part does not mean the best and zero defect management is what we are seeking. In the chain quality management mode, the next procedure is the user of the previous procedure, which serves the next procedure. The whole company serves the market. We have American Innov-X portable spectrometer, table spectrometer, ultrasonic thickness gauge, Japanese SURFTEST SJ-210 surface roughness tester, steel pipe endoscope, ETM16-159 eddy current flaw detector, UT16-159 ultrasonic flaw detector, UT159-830 ultrasonic flaw detector, 30MPa hydraulic tester, hydraulic universal material tester, chemical analyzer, intergranular corrosion tester, etc.