HB8331-2013发动机导管连接用接头或管嘴的熔焊端Weldingendforfittingorferruleforenginetubeconnection2013-10-13发布2014-03-01实施...
HB8330-2013发动机导管连接用接头或管嘴的钎焊端Brazingendforfittingorferruleforenginetubeconnection2013-10-13发布2014-03-01实施...
HB8328-2013发动机导管连接用接头或管嘴设计方法Fittingorferruledesignmethodforenginetubeconnection2013-10-13发布2014-03-01实施...