Water Supply and Irrigation Systems, Sewage Treatment Facilities, Steam and Air-Conditioning Supply, New Single-Family Housing Construction (except Operative Builders), New Multifamily Housing Construction (except Operative Builders)

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

Nonferrous Forging, Prefabricated Metal Building and Component Manufacturing, Precision Turned Product Manufacturing, Fluid Power Valve and Hose Fitting Manufacturing, Ball and Roller Bearing Manufacturing

Nonferrous Forging

Iron and Steel Pipe and Tube Manufacturing from Purchased Steel, Rolled Steel Shape Manufacturing, Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding, Aluminum Foundries (except Die-Casting), Iron and Steel Forging

DIESEL

Iron Foundries, Nonferrous Forging, Custom Roll Forming, Metal Stamping, Fabricated Structural Metal Manufacturing

Other Foundation, Structure, and Building Exterior Contractors, Other Building Finishing Contractors, Nonferrous Forging, Metal Window and Door Manufacturing

Alumina Refining, Primary Aluminum Production, Aluminum Sheet, Plate, and Foil Manufacturing, Other Aluminum Rolling and Drawing, Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding

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

Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding, Nonferrous Forging

Iron and Steel Forging, Nonferrous Forging, Metal Stamping, Hand and Edge Tool Manufacturing, Fabricated Structural Metal Manufacturing

All Other Specialty Trade Contractors, Iron and Steel Forging, Nonferrous Forging, Hand and Edge Tool Manufacturing, Sheet Metal Work 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

Nonferrous Forging, Metal Stamping

Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding, Iron and Steel Forging, Nonferrous Forging, Cutlery and Flatware (except Precious) Manufacturing

Nonferrous Forging

Nonferrous Forging

Iron and Steel Mills, Electrometallurgical Ferroalloy Product Manufacturing, Iron and Steel Pipe and Tube Manufacturing from Purchased Steel, Secondary Smelting and Alloying of Aluminum, Primary Smelting and Refining of Nonferrous Metal (except Copper and Aluminum)

Nonferrous Forging