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Tunnel concrete lining placed by pneumatic gun
Nearly two miles of 10-ft. pressure tunnel at Caribon hydroelectric plant in California placed by concrete gun known as pneumatic concrete ram.
Tunnel concrete lining placed by pneumatic gun
Nearly two miles of 10-ft. pressure tunnel at Caribon hydroelectric plant in California placed by concrete gun known as pneumatic concrete ram.
Tunnel concrete lining placed by pneumatic gun
Eng. News-Rec
Shannon, W.D. (Autor:in)
1921
2 pages
5 Figs.
Aufsatz (Zeitschrift)
Englisch
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