Iron and Steel Mills, Primary Aluminum Production, Aluminum Sheet, Plate, and Foil Manufacturing, Aluminum Extruded Product Manufacturing, Other Aluminum Rolling and Drawing

Iron and Steel Mills

Hydroelectric Power Generation, Sewage Treatment Facilities, Highway, Street, and Bridge Construction, Other Heavy and Civil Engineering Construction, Other Foundation, Structure, and Building Exterior Contractors

Other Foundation, Structure, and Building Exterior Contractors, All Other Miscellaneous Chemical Product and Preparation Manufacturing, Iron and Steel Mills, Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding, Fabricated Structural Metal Manufacturing

Iron and Steel Mills

Commercial and Institutional Building Construction, Other Heavy and Civil Engineering Construction, Wood Preservation, Iron and Steel Mills, Steel Wire Drawing