
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

专家解读视频
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
专家解读视频