
Fittings For Piping - Sluice Valves Of Cast Iron With Non-rising Stem And Socket Ends - Body Seat Rings And Wedge Facing Rings Of Cu-alloy - Nominal Pressure 10
出版:Standardiserings-Kommissionen I Sverige

專家解讀視頻
Fittings For Piping - Sluice Valves Of Cast Iron With Non-rising Stem And Socket Ends - Body Seat Rings And Wedge Facing Rings Of Cu-alloy - Nominal Pressure 10
出版:Standardiserings-Kommissionen I Sverige
專家解讀視頻