
Pressure Resistant Circular Glass-to-metal Sealed Sight Glasses For Temperature Up To 280 Deg C
出版:German Institute for Standardisation (Deutsches Institut für Normung)

專家解讀視頻
Pressure Resistant Circular Glass-to-metal Sealed Sight Glasses For Temperature Up To 280 Deg C
出版:German Institute for Standardisation (Deutsches Institut für Normung)
專家解讀視頻