SY/T 6423.2-2013 Petroleum and natural gas industries—Non-destructive testing (NDT) methods of steel tubes—Part2:Automated ultrasonic testing of the weld seam of welded steed tubes for the detection of longitudinal and/or transverse imperfections
Petroleum and natural gas industries—Non-destructive testing (NDT) methods of steel tubes—Part2:Automated ultrasonic testing of the weld seam of welded steed tubes for the detection of longitudinal and/or transverse imperfections