Aluminum alloy booms with working length of up to 200 ft used with two huge, new derrick boats made by Dravo Corp, Pittsburgh; details of boats; methods employed in fabrication of boom; how problem of deflection was solved.
Aluminum booms boost capacity of derrick boats
Modern Metals
Modern Metals ; 11 , n 3 ; p 74 + 76
1955
Aufsatz (Zeitschrift)
Englisch
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