• Medium through the valve when the flow direction of these changes, so a higher cut-off valve on the flow resistance of the other valve.

    介质通过此类阀门流动方向发生变化因此截止流动阻力高于其它阀门

    www.tech-food.com

  • Medium through the valve when the flow direction of these changes, so a higher cut-off valve on the flow resistance of the other valve.

    介质通过此类阀门流动方向发生变化因此截止流动阻力高于其它阀门

    www.tech-food.com

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