青云翻译

8) one-side welding forming the back of the argon atmosphere, to provide protection gas interface

8) one-side welding with back formation, back of argon shield, protection gas interface

8) One-sided welds the two-sided formings, back the argon protection, provides the controlled atmosphere connection

8) * 1-SIDED welding two-sided shape, argon gas protection on the back, provide protective gas interface

8) one-side welding with back formation, back of argon shield, protection gas interface