STAS SR ISO 9765:1994 Submerged arc-welded steel tubes for pressure purposes. Ultrasonic testing of the weld seam for ?he detection of longitudinal and/or transverse imperfections
1994STAS SR ISO 9765:1994 Submerged arc-welded steel tubes for pressure purposes. Ultrasonic testing of the weld seam for ?he detection of longitudinal and/or transverse imperfections