welding of tubes meaning in Chinese

炉管焊接

Specification and qualification of welding procedures for metallic materials - welding procedure test - welding of tubes to tube - plate joints
金属材料焊接程序的规范和合格鉴定.焊接程序试验.管对管焊接.平板接合
Specification for approval testing of welders working to approved welding procedures - arc welding of tube to tube - plate joints in metallic materials
按认可焊接工艺操作的焊工鉴定考试规范.第3部分:金属管与管板接头间电弧焊
Specification and qualification of welding procedures for metallic materials - welding procedure test - part 8 : welding of tubes to tube - plate joints
金属材料焊接程序的规范和合格鉴定.焊接程序试验.第8部分:管对管板接头的焊接