
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)

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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)
专家解读视频