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  1. Lightweight - Aluminum is about one-third the weight of an equal volume of copper, steel or brass.
  2. Strength - Aluminum can withstand heavy loads and pressure; when alloyed appropriately, its strength approaches that of steel.
  3. Corrosion resistance - The formation of a microscopic film of aluminum oxide on the surface of the metal protects it against the corrosive influences of water, salt and other influences.

Some other minor reasons include

  1. Availability - Aluminum is the most abundant metallic element in the earth's crust.
  2. Cost-efficiency - Aluminum processing is inexpensive.
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