DuraJomin contains

• A. 94% aluminium, 4% copper and 0.5% Mn, Mg, Si and Fe
• B. 92.5% aluminium, 40% copper, 2% nickel, and 1.5% Mg
• C. 10% aluminium and 90% copper
• D. 90% magnesium and 9% aluminium with some copper