阀体与接管焊接工艺评定

Welding processing evaluation of body and joint pipe

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.Give the compilation reference of welding processing procedures.