SY/T 6423.2-2013
石油天然气工业钢管无损检测方法第 2部分:焊接钢管焊缝纵向和/或横向缺欠的自动超声检测
Petroleum and natural gas industries.Non-destructive testing (NDT) methods of steel tubes.Part 2: Automated ultrasonic testing of the weld seam of welded steel tubes for the detection of longitudinal and/or transverse imperfections
SYT6423.2-2013, SY6423.2-2013