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Aluminum is nonmagnetic, which makes it valuable for protecting
electrical equipment from magnetic interference. Aluminum does not
produce sparks when struck and can therefore be used near flammable
or explosive materials. The metal is not poisonous, and so food
can be safely wrapped in aluminum foil and cooked in aluminum pots.
Aluminum, with its alloys, has many valuable properties that make
it an exceptionally useful metal. These properties include (1) light
weight, (2) strength, (3) corrosion resistance, (4) electrical conduction,
(5) heat conduction, and (6) light and heat reflection.
The largest share of aluminum alloy production goes to the packaging
industry for use in such items as beverage cans, bottle caps, foil
pouches, foil wrappers, and food containers. The construction industry
uses aluminum alloys in such items as gutters, panels, residential
siding, roofing, tubes for electric wires, and window frames. Manufacturers
of transportation equipment use huge amounts of aluminum in airplanes,
automobiles, boats, railroad cars, and trucks. Aluminum is used
in much electrical equipment, including light bulbs, power lines,
and telephone wires. Thousands of other products also contain aluminum.
These products include air conditioners, cookware, golf clubs, knitting
needles, lawn furniture, license plates, paints, refrigerators,
rocket fuel, and zippers.
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