welder qualification
短語詞組
- welder performance qualification 焊工操作資格;焊工考試
- welder operation qualification test 焊工上崗資格認(rèn)定
- Welder performance qualification test 焊工技術(shù)鑒定試驗
- Code for welder technical qualification 焊工技術(shù)考核規(guī)程
- welder qualification test 焊工考試;焊工測驗;焊工資格考試;焊工資格考核
- check of welder qualification 焊工評定的檢查
- welder qualification certification 焊工合格證
- base metal for welder qualification 焊工評定用母材
- base metals for welder qualification 焊工評定用母材 返回 welder qualification