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    Default Timbering and support of underground workings for small mines

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    Timbering and support of underground workings for small mines



    Timbering and support of underground workings for small mines
    PDF | ASIN: B0007FYUUO | 3.75 MB
    Genre: Engineering & Technology

    Description:
    Timbering and support of underground workings for small mines (Idaho Bureau of Mines and Geology bulletin)
    William Wesley Staley


    Code:
    http://extabit.com/file/27aulvql1spam

 

 

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