
Flanges - Coupling Dimensions For Nominal Pressures 1 Up To 6 - Working Pressures I-1 Up To I-6, Ii-1 Up To Ii-5
出版:Asociacion Espanola de Normalizacion

专家解读视频
Flanges - Coupling Dimensions For Nominal Pressures 1 Up To 6 - Working Pressures I-1 Up To I-6, Ii-1 Up To Ii-5
出版:Asociacion Espanola de Normalizacion
专家解读视频