Björn Voges Björn Voges Marketing-Manager, Greif-Velox Maschinenfabrik GmbH Germany (Click for more!)
P. K. Venugopalan P. K. Venugopalan Deputy Chief Engineer, FICHTNER Consulting Engineers (Click for more!)
Tads S. Golosinski Tads S. Golosinski Professor, Mining Engineering, University of Missouri-Rolla United States (Click for more!)