Ampco-Pittsburgh Corporation, together with its subsidiaries, manufactures and sells custom designed engineering products to commercial and industrial users worldwide. It operates in two segments, Forged and Cast Engineered Products, and Air and Liquid Processing. The Forged and Cast Engineered Products segment produces forged hardened steel rolls that are used in cold rolling by producers of steel, aluminum, and other metals; ingot and open die forged products, which are used in the gas and oil, and the aluminum and plastic extrusion industries; and cast rolls for hot and cold strip mills, medium/heavy section mills, and plate mills in various iron and steel qualities. The Air and Liquid Processing segment produces custom-engineered finned tube heat exchange coils and related heat transfer products for various industries, including fossil fuel and nuclear power generation, marine defense, refrigeration, automotive, industrial process, and HVAC. This segment also produces custom air handling systems, which are used in commercial, institutional, and industrial buildings; and centrifugal pumps for the refrigeration, power generation, and marine defense industries. Ampco-Pittsburgh Corporation was founded in 1929 and is headquartered in Pittsburgh, Pennsylvania.