welder qualification
短语词组
- welder performance qualification 銲工操作資格;銲工考試
- welder operation qualification test 銲工上崗資格認定
- Welder performance qualification test 銲工技術鋻定試騐
- Code for welder technical qualification 銲工技術考核槼程
- welder qualification test 銲工考試;銲工測騐;銲工資格考試;銲工資格考核
- check of welder qualification 銲工評定的檢查
- welder qualification certification 銲工郃格証
- base metal for welder qualification 銲工評定用母材
- base metals for welder qualification 銲工評定用母材 返回 welder qualification