write the composition of gunmetal and its one use
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Gunmetal, also called G Metal, variety of bronze, formerly used for ordnance. Modern admiralty gunmetal is composed of 88 percent copper, 10 percent tin, and 2 percent zinc and is used for gears and bearings that are to be subjected to heavy loads and low speeds.
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gear and bearings that are to be subjected to heavy loads and low speeds
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