
Fittings For Piping - Gate Valves Of Cast Iron With Non-rising Stem, Sealing Surfaces Of Cu-alloy - Nominal Gauge Pressure 6,4 And 2,5 Kgf/square Cm
出版:Standardiserings-Kommissionen I Sverige

专家解读视频
Fittings For Piping - Gate Valves Of Cast Iron With Non-rising Stem, Sealing Surfaces Of Cu-alloy - Nominal Gauge Pressure 6,4 And 2,5 Kgf/square Cm
出版:Standardiserings-Kommissionen I Sverige
专家解读视频