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Corrosion is the process by which metal degrades in the presence of various oxidizing agents in the environment.
Prevent uniform attack corrosion by protecting the metal surface.
Paint the metal surface. 
Use marine paint for metal exposed to water.
Apply protective lubricants to moving metal parts.
Clean metal surfaces thoroughly before painting or lubricating.
Keep unprotected metal products away from moisture.
Keep metal surfaces as clean as possible.

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Apply oil, paint or zinc coating to prevent from rusting
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