Non-destructive testing of steel tubes. Automated full peripheral flux leakage testing of seamless & welded (except submerged arc-welded) ferromagnetic steel tubes for the detection of longitudinal and/or transverse imperfections Non-destructive testing, Steels, Pipes, Seamless pipes, Seamed pipes, Welded joints, Automatic, Magnetic flux density, Magnetic measurement, Flaw detection, Longitudinal, Transverse, Grades (quality), Approval testing, Acceptance (approval), Test equipment, Control samples, Calibration