
Flanges - Coupling Dimensions For Nominal Pressures 25 And 40 - Working Pressures 1-25, 1-40, 2-20, 2-32, 3-20 And 3-32
出版:Asociacion Espanola de Normalizacion

專家解讀視頻
Flanges - Coupling Dimensions For Nominal Pressures 25 And 40 - Working Pressures 1-25, 1-40, 2-20, 2-32, 3-20 And 3-32
出版:Asociacion Espanola de Normalizacion
專家解讀視頻