The company's new magnetic flux leakage testing machine has high sensitivity to very small defects. It can effectively detect defects such as corrosion pits, eccentric wear on the inner wall of tubing, thinning of tubing wall, etc. Moreover, the testing speed is fast, pollution-free, and the detection is fully automated. The computer display screen is used to display the detection curve, automatically alarm and mark (steel pipe). Defects), tubing classification (first, second and scrap).