
Industrial Valves - Face-to-face And Centre-to-face Dimensions Of Metal Valves For Use In Flanged Pipe Systems - Pn And Class Designated Valves
出版:Italian Standards

专家解读视频
Industrial Valves - Face-to-face And Centre-to-face Dimensions Of Metal Valves For Use In Flanged Pipe Systems - Pn And Class Designated Valves
出版:Italian Standards
专家解读视频