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    手动闸阀工作原理

    2017-03-20 关注次数:

    手动闸阀工作原理:

    转动手轮,通过手轮与阀杆的螺纹的进、退,提升或下降与阀杆连接的阀板,达到开启和关闭的作用

    专业的闸阀厂家-凯发旗舰厅阀门

    通风蝶阀|渠道闸门|盲板阀|插板阀|煤气闸阀

    通风蝶阀

    渠道闸门

    盲板阀

    插板阀

    煤气闸阀

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