• Compared with the currently used catch basin cover, the device features light weight, easy storage and transit, high bearing strength, and simple, fast and reliable installation and adjustment.

    现今使用窨井相比,它还自重量便利承压强度安装调整简单快捷可靠

    youdao

  • Compared with the currently used catch basin cover, the device features light weight, easy storage and transit, high bearing strength, and simple, fast and reliable installation and adjustment.

    现今使用窨井相比,它还自重量便利承压强度安装调整简单快捷可靠

    youdao

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