Iron and Steel Mills, Iron and Steel Pipe and Tube Manufacturing from Purchased Steel, Rolled Steel Shape Manufacturing, Primary Aluminum Production, Secondary Smelting and Alloying of Aluminum

Industrial Building Construction, Commercial and Institutional Building Construction, Other Heavy and Civil Engineering Construction, Electrical Contractors, All Other Specialty Trade Contractors

Iron Foundries, Plate Work Manufacturing, Construction Machinery Manufacturing, All Other Industrial Machinery Manufacturing, Machine Tool (Metal Cutting Types) Manufacturing

Other Building Finishing Contractors, All Other Specialty Trade Contractors, Textile Bag Mills, Iron Foundries, Ornamental and Architectural Metal Work Manufacturing

Dog and Cat Food Manufacturing, Other Animal Food Manufacturing, Nonchocolate Confectionery Manufacturing, Fruit and Vegetable Canning, Fluid Milk Manufacturing

Iron Foundries, Machine Shops, Industrial Mold Manufacturing

Plastics Pipe and Pipe Fitting Manufacturing, Iron and Steel Mills, Iron and Steel Pipe and Tube Manufacturing from Purchased Steel, Iron Foundries, Bolt, Nut, Screw, Rivet, and Washer Manufacturing

Iron Foundries, Fabricated Pipe and Pipe Fitting Manufacturing

Primary Smelting and Refining of Nonferrous Metal (except Copper and Aluminum), Secondary Smelting, Refining, and Alloying of Nonferrous Metal (except Copper and Aluminum), Iron Foundries, Steel Investment Foundries, Steel Foundries (except Investment)

Industrial Building Construction, Commercial and Institutional Building Construction, Oil and Gas Pipeline and Related Structures Construction, Power and Communication Line and Related Structures Construction, Other Heavy and Civil Engineering Construction

Iron Foundries, Aluminum Foundries (except Die-Casting), Plate Work Manufacturing, Sheet Metal Work Manufacturing, Machine Shops

Iron Foundries, Steel Foundries (except Investment), Aluminum Die-Casting Foundries, Electronic Coil, Transformer, and Other Inductor Manufacturing

Iron Foundries

Sewage Treatment Facilities, Water and Sewer Line and Related Structures Construction, Highway, Street, and Bridge Construction, Plastics Pipe and Pipe Fitting Manufacturing, Abrasive Product Manufacturing

Water Supply and Irrigation Systems, Structural Steel and Precast Concrete Contractors, Plastics Pipe and Pipe Fitting Manufacturing, Laminated Plastics Plate, Sheet (except Packaging), and Shape Manufacturing, All Other Plastics Product Manufacturing

Iron Foundries, Aluminum Foundries (except Die-Casting), Machine Shops, All Other Miscellaneous Fabricated Metal Product Manufacturing, Industrial Mold Manufacturing

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

Power and Communication Line and Related Structures Construction, Plumbing, Heating, and Air-Conditioning Contractors, Plastics Plumbing Fixture Manufacturing, Iron Foundries, Plumbing Fixture Fitting and Trim Manufacturing

Iron Foundries

Iron Foundries, Aluminum Foundries (except Die-Casting), Ornamental and Architectural Metal Work Manufacturing