General and detailed suggestions, with special reference to small and medium sized sand and gravel plants; tools needed by repairmen are oxyacetylene welding and cutting outfit, electric welding outfit, and junk pile.
That junk heap can furnish material to keep your equipment in operation
Pit Quarry
Pit and Quarry ; 35 , n 10
1943
Aufsatz (Zeitschrift)
Englisch
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