
Flanges - Projection And Recess, Nominal Pressures 10 To 100 - Design Dimensions
出版:German Institute for Standardisation (Deutsches Institut für Normung)

專家解讀視頻
Flanges - Projection And Recess, Nominal Pressures 10 To 100 - Design Dimensions
出版:German Institute for Standardisation (Deutsches Institut für Normung)
專家解讀視頻