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david tutton and willibald streck independent consultant mining engineers

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david tutton and willibald streck independent consultant mining engineers

david tutton mining david tutton and willibald streck independent consultantof mobile inpit crushing and conveying in large hard rock open pit mines182 Мб About the authors David Tutton is a mining engineer with 33 years mining experience in open pit operations withWillibald Streck is a mining engineer with 50 years experience in