Ampco-Pittsburgh Corporation operates in two segments: Forged and Cast Rolls, and Air and Liquid Processing. The Company�s Forged and Cast Rolls Segment�s Union Electric Steel Corporation produces forged hardened steel rolls used in cold rolling by producers of steel, aluminum and other metals throughout the world. Union Electric Steel United Kingdom Limited produces cast rolls for hot and cold strip mills, medium/heavy section mills and plate mills in a variety of iron and steel qualities. Its Air and Liquid Processing Segment�s Aerofin Division of Air and Liquid Systems Corporation produces custom-engineered finned tube heat exchange coils and related heat transfer products for a variety of industries. Buffalo Air Handling Division of Air and Liquid Systems Corporation produces custom air handling systems used in commercial, institutional and industrial buildings. It manufactures a line of centrifugal pumps for the refrigeration, power generation and marine defense industries.