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Q. |
Duralumin which is used in making aero planes is an alloy consisting of _____? |
A. | Aluminum & Copper |
B. | Aluminum, Copper & Manganese |
C. | Aluminum, Copper, Manganese & Magnesium |
D. | Aluminum and zinc |
Answer» C. Aluminum, Copper, Manganese & Magnesium |
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