The Cat ® Rock Straight System is a fully mechanized longwall system designed for continuous mining of flat and tabular deposits and reefs of hard rock minerals. The system combines the use of a hard ...
Wednesday, July 18 INSTITUTION OF MINING ENGINEERS (at the Midland Counties Institution of Engineers, Nottingham)—Fifty-first Annual General Meeting. Mr. T. E. B. Young and Mr. W. H. Sansom: ...
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