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Robbins Main Beam Finishes Challenging China Drive

    Arie van den Broek
    By Arie van den Broek

    A Robbins Main Beam TBM with 8 m diameter does breakthrough after a run of 17.5 km tunnelling in China.

    https://tunnelingonline.com/robbins-main-beam-finishes-challenging-china-drive/

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