KS D ISO 9765-2002(2012) Submerged arc-welded steel tubes for pressure purposes-Ultrasonic testing of the weld seam for the detection of longitudinal and/or transverse imperfections
2002KS D ISO 9765:2002 Submerged arc-welded steel tubes for pressure purposes-Ultrasonic testing of the weld seam for the detection of longitudinal and/or transverse imperfections