Joy Mining Machinery is a manufacturer of surface and underground mining machinery based in Warrendale, Pennsylvania, United States.
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The Joy Mining Machinery business is headquartered in Warrendale, Pennsylvania with over 40 field offices in eight countries.
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It is the home to the corporate headquarters of Rue 21, American Eagle Outfitters, Joy Mining Machinery and SAE International, as well as the United States Postal Service Pittsburgh Network Distribution Center, one of 21 such mail delivery hubs in the country.