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duralumin




Thirty-nine duralumin rings attached to lateral girders formed the lightweight but strong 803-foot-long framework of the Hindenburg
Thirty-nine duralumin rings attached to lateral girders formed the lightweight but strong 803-foot-long framework of the Hindenburg
An alloy of aluminum with copper, magnesium, and manganese composed within the following liits: aluminum – over 90%; copper – about 4%; magnesium – 0.5% to 1.5%; manganese – less than 1%.


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