This U.S. industry comprises establishments primarily engaged in fabricating structural metal products, such as concrete reinforcing bars and fabricated bar joists. Manufacturing metal windows and doors--are classified in U.S. Industry 332321, Metal Window and Door Manufacturing; Manufacturing metal studs--are classified in U.S. Industry 332322, Sheet Metal Work Manufacturing; Constructing buildings, bridges, and other heavy construction projects on site--are classified in Sector 23, Construction; Building ships, boats and barges--are classified in Industry 33661, Ship and Boat Building; and Prefabricating metal buildings, panels, and sections--are classified in U.S. Industry 332311, Prefabricated Metal Building and Component Manufacturing.
