
Revision Of Iec 534-3-2 - Industrial-process Control Valves - Part 3: Dimensions - Section 2: Face-to-face Dimensions For Flangeless Control Valves Except Wafer Butterfly Valves
出版:British Standards Institution

专家解读视频
Revision Of Iec 534-3-2 - Industrial-process Control Valves - Part 3: Dimensions - Section 2: Face-to-face Dimensions For Flangeless Control Valves Except Wafer Butterfly Valves
出版:British Standards Institution
专家解读视频