
Industrial-process Control Valves - Part 3: Dimensions - Section One: Face-to-face Dimensions For Flanged, Two-way, Globe-type Control Valves
出版:Nederlands Normalisatie Instituut

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Industrial-process Control Valves - Part 3: Dimensions - Section One: Face-to-face Dimensions For Flanged, Two-way, Globe-type Control Valves
出版:Nederlands Normalisatie Instituut
专家解读视频