Primary Aluminum Production, Aluminum Foundries (except Die-Casting), Plate Work Manufacturing, Machine Shops, Precision Turned Product Manufacturing

Iron and Steel Mills

Steel Investment Foundries

Steel Foundries (except Investment)

Iron and Steel Pipe and Tube Manufacturing from Purchased Steel

Iron Foundries, Aluminum Foundries (except Die-Casting)

Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding, Machine Shops, Precision Turned Product Manufacturing, Bolt, Nut, Screw, Rivet, and Washer Manufacturing, Machine Tool (Metal Cutting Types) Manufacturing

Iron and Steel Pipe and Tube Manufacturing from Purchased Steel

Electrical Contractors, Other Building Equipment Contractors, All Other Specialty Trade Contractors, Wood Preservation, Other Millwork (including Flooring)

Other Heavy and Civil Engineering Construction, Iron and Steel Mills, Steel Wire Drawing

Aluminum Extruded Product Manufacturing, Aluminum Foundries (except Die-Casting), Hardware Manufacturing, Machine Shops, Industrial Pattern Manufacturing

Secondary Smelting, Refining, and Alloying of Nonferrous Metal (except Copper and Aluminum)

Iron and Steel Pipe and Tube Manufacturing from Purchased Steel, Metal Stamping, Sheet Metal Work Manufacturing, Metal Tank (Heavy Gauge) Manufacturing, Metal Can Manufacturing

Iron and Steel Pipe and Tube Manufacturing from Purchased Steel

Rolled Steel Shape Manufacturing, Fabricated Structural Metal Manufacturing, Power Boiler and Heat Exchanger Manufacturing, Machine Shops, Fabricated Pipe and Pipe Fitting Manufacturing

Wood Preservation, Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding, Fabricated Structural Metal Manufacturing, Air and Gas Compressor Manufacturing, Electronic Coil, Transformer, and Other Inductor Manufacturing

Aluminum Sheet, Plate, and Foil Manufacturing

Aluminum Foundries (except Die-Casting)

Aluminum Foundries (except Die-Casting), Copper Foundries (except Die-Casting)

Nonferrous (except Aluminum) Die-Casting Foundries, Metal Stamping, Metal Coating, Engraving (except Jewelry and Silverware), and Allied Services to Manufacturers, Electroplating, Plating, Polishing, Anodizing, and Coloring, Small Arms Manufacturing