oil pressure cut-off valve
...阀(Hydraulic cut-off valve)也称液压切断阀(Hydraulic pressure cut-off valve),油压切断阀(Oil pressure cut-off valve)QDY421F-25C液动紧急切断阀(Hydraulic Emergency shut off valve)是一种需人工现场手控的常闭式液压阀门,与SB-03型手摇油泵(...
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oil pressure cut-off valve
油压截止阀
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