Imperial Group Manufacturing, Inc., an Ironform Company, is a leading supplier of truck body and chassis components, primarily to heavy- and medium-duty truck manufacturers, including bus manufacturers. Imperial fabricates a broad line of truck body and chassis parts, including bumpers, battery and tool boxes, crown assemblies, bus component and chassis assemblies, fuel tanks, roofs, fenders, and cross members. In addition, Imperial provides a variety of value-added services, such as chrome plating and polishing and the kitting and assembly of exhaust systems.