Flexible shaft drills, bridge conveyors and trackmounted shuttle cars are increasing efficiency and productivity in mining upper Kittanning seam at Portage No. 2 mine, Pa; photographs.
New on-track shuttle car boosts loading time at face
Coal Age
Coal Age ; 57 , n 3
1952
5 pages
Aufsatz (Zeitschrift)
Englisch
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Track Maintenance - Metronet boosts productivity
Online Contents | 2005
Metronet boosts track maintenance productivity
IuD Bahn | 2005
|Managing risk boosts track safety
IuD Bahn | 2007
|Engineering Index Backfile | 1953
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