Ampco-Pittsburgh Corporation, together with its subsidiaries, manufactures and sells custom designed engineering products to commercial and industrial users in the United States and internationally. The company 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 rolling mills by producers of steel, aluminum, and other metals; ingot and open-die forged products for use in the oil and gas, and the aluminum and plastic extrusion industries; and cast rolls for hot and cold strip mills, medium/heavy section mills, hot strip finishing, roughing mills, and plate mills in various iron and steel qualities. This segment also offers forged rolls for cluster mills and Z-Hi mills; work rolls for narrow and wide strip and aluminum mills; back-up rolls for narrow strip mills; leveling rolls and shafts; and distributes tool steels, alloys, and carbon round bars. The Air and Liquid Processing segment produces custom-engineered finned tube heat exchange coils and related heat transfer products for various industries, including nuclear power generation, OEM/commercial, industrial process, and HVAC; and air handling systems for use in commercial, institutional, and industrial buildings. This segment also provides centrifugal pumps for the refrigeration, power generation, and marine defense industries. Ampco-Pittsburgh Corporation was founded in 1929 and is headquartered in Carnegie, Pennsylvania.