Iron Foundries, Steel Investment Foundries, Aluminum Foundries (except Die-Casting)

Other Foundation, Structure, and Building Exterior Contractors, All Other Specialty Trade Contractors, Iron and Steel Pipe and Tube Manufacturing from Purchased Steel, Ornamental and Architectural Metal Work Manufacturing, Other Construction Material Merchant Wholesalers

Copper Foundries (except Die-Casting)

Iron and Steel Pipe and Tube Manufacturing from Purchased Steel

Support Activities for Metal Mining, Support Activities for Nonmetallic Minerals (except Fuels) Mining, Other Foundation, Structure, and Building Exterior Contractors, Painting and Wall Covering Contractors, Sawmills

Electrometallurgical Ferroalloy Product Manufacturing

Commercial and Institutional Building Construction, Iron and Steel Mills, Iron and Steel Pipe and Tube Manufacturing from Purchased Steel, Rolled Steel Shape Manufacturing, Aluminum Sheet, Plate, and Foil Manufacturing

Other Foundation, Structure, and Building Exterior Contractors, Iron and Steel Pipe and Tube Manufacturing from Purchased Steel, Metal Window and Door Manufacturing, Ornamental and Architectural Metal Work Manufacturing, Machine Shops

Aluminum Extruded Product Manufacturing, Metal Tank (Heavy Gauge) Manufacturing, Industrial Truck, Tractor, Trailer, and Stacker Machinery Manufacturing

Iron and Steel Pipe and Tube Manufacturing from Purchased Steel, Rolled Steel Shape Manufacturing, Aluminum Sheet, Plate, and Foil Manufacturing, Sheet Metal Work Manufacturing, Ornamental and Architectural Metal Work Manufacturing

Other Heavy and Civil Engineering Construction, Poured Concrete Foundation and Structure Contractors, Masonry Contractors, Other Foundation, Structure, and Building Exterior Contractors, Electrical Contractors

Hardware Manufacturing