求翻译：XSF2″-1502硬密封旋塞阀是钻机固井管汇的配套设备，其作用是开启或关闭介质通道，控制流液。也单独使用，可用于水泥车出口处。是什么意思？

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-1502 XSF2" hard seal Cock valve is drilling wells Managed Sinks of firmware companion devices, whose role is to turn on or turn off the media channel, control flow. Also used alone, can be used to cement the outlet of the car.

XSF2 " - 1502 seals the stopcock is hardly the drilling machine well cementation pipe manifold supplementary equipment, its function is opening or the closure medium channel, the control flows the fluid.Also independent employment, available in cement mixer exit.

XSF2-1502 sealed plug valve is the equipment of drilling cementing manifold, whose role is to open or close the media channel, the flow of control liquid. Used alone, can be used to exit of the cement truck.

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