标准焊缝为跨端自焊缝。
Standard weld is autogenous weld across end (A.W.A.E.). Sanded after weld.
介绍了阀体与接管焊接的焊缝技术要求、执行标准、检验内容及合格指标。
Introduce welded seam specification, standards performed, inspectation items and acceptable index for welding of body and joint pipe.
围绕K值展开讨论，提出一种符合现行标准、规程要求的标准椭圆封头拼接焊缝的射线探伤工艺。
By a discussion on K value, the radiographic technology for the butt welds in standard elliptic sealing heads consistent with current standards and regulations is presented.
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