LIBROS DEL AUTOR: krzysztof kotwica

2 resultados para LIBROS DEL AUTOR: krzysztof kotwica

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  • New Mining Tools and Methods for Roadheader Mining Heads
    Krzysztof Kotwica
    This book introduces new solutions for mining tools, unique lubricated holders and mining methods for hard-rock mining using mini-disk tools. In the first part, it describes problems connected with hard-rock mining using traditional mining methods like cutting. Then an alternative for conical pick is discussed, the so-called crown or bell pick and a new solution of a holder for...
    Disponible

    123,49 €

  • New Mining Tools and Methods for Roadheader Mining Heads
    Krzysztof Kotwica
    This book introduces new solutions for mining tools, unique lubricated holders and mining methods for hard-rock mining using mini-disk tools. In the first part, it describes problems connected with hard-rock mining using traditional mining methods like cutting. Then an alternative for conical pick is discussed, the so-called crown or bell pick and a new solution of a holder for...
    Disponible

    48,53 €