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1860s steam powered tunnel excavator

We mainly manufacture a range of Roadheaders

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  • Pneumatic Transport – State of the Art – Desk research

    Pneumatic Transport – State of the Art – Desk research . Updated 16 th May 2007 – Noel Hodson, Oxford.. Searches of the World-Wide-Web: Pneumatic Transport – State of the Art – Desk research..

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    Terminology. A tunnel is relatively long and narrow; the length is often much greater than twice the diameter, although similar shorter excavations can be constructed, such as cross passages between tunnels.

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