
Equipment And Vessels - Allowable Working Pressure -1,0 Bar To +0,5 Bar - Technical Delivery Conditions
出版:German Institute for Standardisation (Deutsches Institut für Normung)

專家解讀視頻
Equipment And Vessels - Allowable Working Pressure -1,0 Bar To +0,5 Bar - Technical Delivery Conditions
出版:German Institute for Standardisation (Deutsches Institut für Normung)
專家解讀視頻