DIN EN 61987-22 (2015-01)被替代
Industrial-process Measurement And Control - Data Structures And Elements In Process Equipment Catalogues - Part 22: Lists Of Properties (lop) Of Valve Body Assemblies For Electronic Data Exchange (iec 65b/927/cdv:2014)
出版：German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频
