big diameter welded tube的用法和样例：
- A lubricator is redesigned and a big diameter cable and a large I.
- The domestic cylinder card with big diameter is heavy rationed wi...
- The formula is applied to the prebending design of large diameter weld pipe produced by UOE.
- Using the technology of computer aided design and computer aided manufacture,the big diameter cams in colour TV tube machines was made out by using CNC machine,it is successful in prance.
- small diameter and thickness welded tube