所有对接、T型槽和弯管接头都要完全侵入连接到焊接接头上。

All butt, grooved t, and corner joints shall be complete joint penetration weld joints.

youdao

所有对接、T型槽和弯管接头都要完全侵入连接到焊接接头上。

All butt, grooved t, and corner joints shall be complete joint penetration weld joints.

youdao