
INDUSTRIAL VALVES - ISOLATING VALVES FOR LOW-TEMPERATURE APPLICATIONS - PART 1: DESIGN, MANUFACTURING AND PRODUCTION TESTING (ISO 28921-1:2013)
出版:German Institute for Standardisation (Deutsches Institut für Normung)

專家解讀視頻
INDUSTRIAL VALVES - ISOLATING VALVES FOR LOW-TEMPERATURE APPLICATIONS - PART 1: DESIGN, MANUFACTURING AND PRODUCTION TESTING (ISO 28921-1:2013)
出版:German Institute for Standardisation (Deutsches Institut für Normung)
專家解讀視頻