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  2. A. O. Smith - Wikipedia

    en.wikipedia.org/wiki/A._O._Smith

    The A. O. Smith Foundation is a private, nonprofit organization, founded in 1955, that has contributed nearly $50 million to qualifying charitable, educational, scientific, literary, and civic organizations located primarily in communities where A. O. Smith Corporation has facilities. The support for the Foundation comes from the profits of A ...

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  4. Galvanic anode - Wikipedia

    en.wikipedia.org/wiki/Galvanic_anode

    A galvanic anode, or sacrificial anode, is the main component of a galvanic cathodic protection system used to protect buried or submerged metal structures from corrosion. They are made from a metal alloy with a more "active" voltage (more negative reduction potential / more positive oxidation potential ) than the metal of the structure.

  5. Cathodic protection - Wikipedia

    en.wikipedia.org/wiki/Cathodic_protection

    Zinc sacrificial anode (rounded object) screwed to the underside of the hull of a small boat. Cathodic protection ( CP ; / k æ ˈ θ ɒ d ɪ k / ⓘ ) is a technique used to control the corrosion of a metal surface by making it the cathode of an electrochemical cell . [ 1 ]

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