Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Concreting pays for slushing and haulage drifts
Many advantages in respect to safety and operation underground have been realized by Bethlehem Cornwall Corp at its iron mines in Pennsylvania through lining drifts with concrete; illustrations, cost estimates.
Concreting pays for slushing and haulage drifts
Many advantages in respect to safety and operation underground have been realized by Bethlehem Cornwall Corp at its iron mines in Pennsylvania through lining drifts with concrete; illustrations, cost estimates.
Concreting pays for slushing and haulage drifts
Eng Min J
Bernhardt, J. (Autor:in)
1950
5 pages
Aufsatz (Zeitschrift)
Englisch
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