Coal age

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  Año 2009, Vol. 114, Número 5

  • FEATURE ARTICLES

    • McElroy grows longwall production safely

      Steve Fiscor (ed. lit.)

      págs. 24-28

      

    • Longwall USA 2009

      Steve Fiscor (ed. lit.)

      págs. 30-37

      

    • Dragline mining returns to western Kentucky

      Lee Buchsbaum

      págs. 38-43

      

    • Incorporating hydraulics to properly mount and dismount bearings

      Greg Hewitt

      págs. 44-45