石油天然气工业 承压钢管无损检测方法 埋弧焊钢管焊缝缺欠的射线检测
石油天然气工业 承压钢管无损检测方法 埋弧焊钢管焊缝缺欠的射线检测
Petreoleum and natural gas industries—Non-destructive testing (NDT) methods of steel tubes for pressure purposes—Radiographic testing of the weld seam of submerged arcwelded steel tubes for the detection of imperfections
发布日期:1999-08-09
实施日期:2000-04-01