PanLinx
English
eng-000
backing weld
普通话
cmn-000
底焊
普通话
cmn-000
底焊焊缝
普通话
cmn-000
用垫环的焊缝
English
eng-000
back run
English
eng-000
back welding
English
eng-000
weld on bottom
English
eng-000
welding on bottom
PanLex