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People who like reply on Critics explained not using Bến Thành-Suối Tiên tunnel TBM also for Nhổn - Hà Nội line

    Ravnish Sharma
    Ravnish Sharma on Critics explained not using Bến Thành-Suối Tiên tunnel TBM also for Nhổn - Hà Nội line (): Write off a TBM only after 2.5km of bore?

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