... , DC, mixed-type 1. Intelligent magnetic flux leakage testing machine/ MFL2.IDEA-8MFL magnetic flux leakage detector3.AC, DC ... the human factors of magnetic particles testing and penetrant testing methods, through the magnetization and testing of complete body with the use ... steel billet, round steel. bar, pipe, weld, cable and other testing, as well as nuclear energy, electric power, petrochemical, ...