Structures and Building and Construction and Manufacturing Components and Supplies: This segment includes components, materials and systems used in the construction, repair and maintenance of structures and roads. This segment also includes structural shapes, prefabricated structures, interior and exterior finishing products, electrical and plumbing fixtures as well as lumber, building components and concrete.; Building and Facility Construction and Maintenance Services: This segment includes services associated with the construction and maintenance of facilities, buildings, structures, roads and infrastructure. This segment also includes trades such as general contractors, electricians, plumbers, carpenters, painters, and roofing, landscaping, gardening and pest control. ; Metal cutting machinery and accessories: Machines that cut away chips and include (but are not limited to) broaching machines, drilling machines, electrical-discharge machines, gear cutting machines, grinders, machining centers, milling machines, transfer machines, and turning machines such as lathes.; Structural materials: Various metal and non metal materials of different shapes that are further processed to be useful in the building of structures