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Jürgen Opdenhoff Jürgen Opdenhoff Managing Director, Opdenhoff Technologie Deutschland (Click for more!)
Tads S. Golosinski Tads S. Golosinski Professor, Mining Engineering, University of Missouri-Rolla Vereinigte Staaten (Click for more!)
Thomas Kusserow Thomas Kusserow Marketing-Manager Mining & Minerals, Abb pi pm Deutschland (Click for more!)
