Features of plant of Blue Ridge Stone Corp at Blue Ridge, 12 mi east of Roanoke, Va; started as railroad ballast plant equipped to ship by rail, with fines or waste given away, rebuilt plant now produces 10 or more grades of material; rotary replaced with vibrating screens; reduction crusher capacity added.
Making fine products
Rock Products
Rock Products ; 44 , n 7
1941
Aufsatz (Zeitschrift)
Englisch
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