Structural Steel and Precast Concrete Contractors, Iron and Steel Pipe and Tube Manufacturing from Purchased Steel, Rolled Steel Shape Manufacturing, Prefabricated Metal Building and Component Manufacturing, Fabricated Structural Metal Manufacturing

Other Foundation, Structure, and Building Exterior Contractors, All Other Specialty Trade Contractors, Plate Work Manufacturing, Ornamental and Architectural Metal Work Manufacturing, Fabricated Pipe and Pipe Fitting Manufacturing

Steel Wire Drawing, Fabricated Pipe and Pipe Fitting Manufacturing

Steam and Air-Conditioning Supply, Industrial Building Construction, Water and Sewer Line and Related Structures Construction, Oil and Gas Pipeline and Related Structures Construction, Power and Communication Line and Related Structures Construction

Painting and Wall Covering Contractors, Other Building Finishing Contractors, Custom Roll Forming, Fabricated Structural Metal Manufacturing, Plate Work Manufacturing

Water and Sewer Line and Related Structures Construction, Highway, Street, and Bridge Construction, Other Heavy and Civil Engineering Construction, Poured Concrete Foundation and Structure Contractors, Structural Steel and Precast Concrete Contractors

Support Activities for Oil and Gas Operations, Water Supply and Irrigation Systems, Sewage Treatment Facilities, Steam and Air-Conditioning Supply, New Single-Family Housing Construction (except Operative Builders)

Plate Work Manufacturing, Machine Shops, Precision Turned Product Manufacturing, Industrial Valve Manufacturing, Fluid Power Valve and Hose Fitting Manufacturing

Water Supply and Irrigation Systems, Sewage Treatment Facilities, Water and Sewer Line and Related Structures Construction, Bolt, Nut, Screw, Rivet, and Washer Manufacturing, Fabricated Pipe and Pipe Fitting Manufacturing

Water Supply and Irrigation Systems, Sewage Treatment Facilities, Steam and Air-Conditioning Supply, Commercial and Institutional Building Construction, Water and Sewer Line and Related Structures Construction

Fabricated Structural Metal Manufacturing, Plate Work Manufacturing, Metal Window and Door Manufacturing, Sheet Metal Work Manufacturing, Ornamental and Architectural Metal Work Manufacturing

Fabricated Structural Metal Manufacturing, Sheet Metal Work Manufacturing, Ornamental and Architectural Metal Work Manufacturing, Metal Tank (Heavy Gauge) Manufacturing, Other Metal Container Manufacturing

Fabricated Pipe and Pipe Fitting Manufacturing

Plate Work Manufacturing, Sheet Metal Work Manufacturing, Ornamental and Architectural Metal Work Manufacturing, Metal Tank (Heavy Gauge) Manufacturing, Fabricated Pipe and Pipe Fitting Manufacturing

Iron and Steel Pipe and Tube Manufacturing from Purchased Steel, Rolled Steel Shape Manufacturing, Aluminum Sheet, Plate, and Foil Manufacturing, Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding, Sheet Metal Work Manufacturing

Industrial Building Construction, Poured Concrete Foundation and Structure Contractors, Structural Steel and Precast Concrete Contractors, Other Foundation, Structure, and Building Exterior Contractors, Fabricated Structural Metal Manufacturing

Oil and Gas Pipeline and Related Structures Construction, Plumbing, Heating, and Air-Conditioning Contractors, Fabricated Pipe and Pipe Fitting Manufacturing

Machinery

Sheet Metal Work Manufacturing, Machine Shops, Fabricated Pipe and Pipe Fitting Manufacturing

Prefabricated Metal Building and Component Manufacturing, Fabricated Structural Metal Manufacturing, Sheet Metal Work Manufacturing, Ornamental and Architectural Metal Work Manufacturing, Metal Tank (Heavy Gauge) Manufacturing