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Aluminium is a lightweight metal and has a vast usage in a variety of applications as rods. You can find them in almost every type of electrical gadgets. The metal is a silvery white colored product having a tenacious oxide coating. The aluminium rod needs to be twisted with correct precision to be used in a safe and effective manner. Aluminium when bared to air, generates a protective layer of aluminium oxide on its surface which works as a powerful resistant to corrosion. This is one primary reason for its wide usage for external applications. Though it is less resistant to alkali, the metal is a good resistant to acids.
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