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DS Z64, DS Z964 welded water seal gate valves

DS Z64, DS Z964, DS Z564, DS Z464 (Y, H) - PN 16, 25, 40, 64, 100 welded water seal gate valves are suitable for nominal pressure S10.0Mpa, working temperature ≤ 425C, and working media: water, steam, and oil. Used as an opening and closing device on non corrosive gas pipelines, especially suitable for vacuum condensation systems of steam turbines in thermal power plants.
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熟女少妇精品一区二区_亚洲国产精品无码久久_精品国产AV色欲果冻传媒_亚洲国产精品毛片AV不卡在线