Glass and Glazing Contractors, Aluminum Extruded Product Manufacturing, Metal Window and Door Manufacturing

Copper Foundries (except Die-Casting)

All Other Specialty Trade Contractors, Wood Preservation, Cut Stock, Resawing Lumber, and Planing, All Other Miscellaneous Wood Product Manufacturing, Iron and Steel Mills

Iron and Steel Mills

Finish Carpentry Contractors, Primary Aluminum Production, Secondary Smelting and Alloying of Aluminum

Iron Ore Mining, Gold Ore Mining, Secondary Smelting, Refining, and Alloying of Nonferrous Metal (except Copper and Aluminum), Freight Transportation Arrangement, Commodity Contracts Dealing

Structural Steel and Precast Concrete Contractors, Iron and Steel Mills, Aluminum Sheet, Plate, and Foil Manufacturing, Fabricated Structural Metal Manufacturing, Plate Work Manufacturing

Rubber Product Manufacturing for Mechanical Use, All Other Rubber Product Manufacturing, Aluminum Die-Casting Foundries, Aluminum Foundries (except Die-Casting), Machine Shops

Iron and Steel Pipe and Tube Manufacturing from Purchased Steel, Metal Stamping, Plate Work Manufacturing, Machine Shops, Precision Turned Product Manufacturing

Iron and Steel Mills, Bolt, Nut, Screw, Rivet, and Washer Manufacturing, All Other Industrial Machinery Manufacturing, Cutting Tool and Machine Tool Accessory Manufacturing, Overhead Traveling Crane, Hoist, and Monorail System Manufacturing

All Other Basic Inorganic Chemical Manufacturing, Rolled Steel Shape Manufacturing, Custom Roll Forming, Machine Shops, Precision Turned Product Manufacturing

Iron and Steel Mills, Fabricated Structural Metal Manufacturing, Plate Work Manufacturing, Precision Turned Product Manufacturing, All Other Miscellaneous Fabricated Metal Product Manufacturing

All Other Plastics Product Manufacturing, Rubber Product Manufacturing for Mechanical Use, Steel Investment Foundries, Aluminum Die-Casting Foundries, Sheet Metal Work Manufacturing

All Other Miscellaneous Chemical Product and Preparation Manufacturing, Steel Wire Drawing, Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding, Plate Work Manufacturing, Electroplating, Plating, Polishing, Anodizing, and Coloring

Tire Manufacturing (except Retreading), Aluminum Extruded Product Manufacturing, Aluminum Die-Casting Foundries, Hand and Edge Tool Manufacturing, Fabricated Structural Metal Manufacturing

Aluminum Die-Casting Foundries, Aluminum Foundries (except Die-Casting), Metal Stamping, Powder Metallurgy Part Manufacturing, Machine Shops

Support Activities for Oil and Gas Operations, Petroleum Lubricating Oil and Grease Manufacturing, Rolled Steel Shape Manufacturing, Other Aluminum Rolling and Drawing, Custom Roll Forming

Structural Steel and Precast Concrete Contractors, All Other Specialty Trade Contractors, Iron and Steel Pipe and Tube Manufacturing from Purchased Steel, Rolled Steel Shape Manufacturing

Rolled Steel Shape Manufacturing, Fabricated Structural Metal Manufacturing, Sheet Metal Work Manufacturing, Metal Tank (Heavy Gauge) Manufacturing

Other Heavy and Civil Engineering Construction, Site Preparation Contractors