
INDUSTRIAL-PROCESS CONTROL VALVES - PART 2-3: FLOW CAPACITY - TEST PROCEDURES (IEC 60534-2-3:2015)
出版:German Institute for Standardisation (Deutsches Institut für Normung)

專家解讀視頻
INDUSTRIAL-PROCESS CONTROL VALVES - PART 2-3: FLOW CAPACITY - TEST PROCEDURES (IEC 60534-2-3:2015)
出版:German Institute for Standardisation (Deutsches Institut für Normung)
專家解讀視頻