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Keywords: Krupp-Renn facility project Mesabi Range.png procédé Krupp-Renn en Direct reduction mill as projeted to process the Mesabi Range iron ores Version with 6 rotating furnaces Krupp-Renn process before May 1964 https //archive org/details/feasibilityofkru00sout Feasibility of the Krupp-Renn process for treating the lean iron ores of the Mesabi Range p 8 U S Department of Commerce PD-USGov Direct reduction Uploaded with UploadWizard History of industry in Minnesota |