Crude Petroleum and Natural Gas Extraction, Iron Ore Mining, Gold Ore Mining, Lead Ore and Zinc Ore Mining, Petroleum Refineries

Other Foundation, Structure, and Building Exterior Contractors, Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding, Plate Work Manufacturing, Machine Tool (Metal Cutting Types) Manufacturing, Welding and Soldering Equipment Manufacturing

All Other Miscellaneous Chemical Product and Preparation Manufacturing, Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding, Plate Work Manufacturing, Machine Tool (Metal Cutting Types) Manufacturing, Special Die and Tool, Die Set, Jig, and Fixture Manufacturing

Secondary Smelting and Alloying of Aluminum, Copper Rolling, Drawing, and Extruding, Secondary Smelting, Refining, and Alloying of Copper, Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding, Office Equipment Merchant Wholesalers

Site Preparation Contractors, Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding, Secondary Smelting, Refining, and Alloying of Nonferrous Metal (except Copper and Aluminum), All Other Miscellaneous General Purpose Machinery Manufacturing, Recyclable Material Merchant Wholesalers

All Other Miscellaneous Textile Product Mills, Copper Wire (except Mechanical) Drawing, Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding, Hardware Manufacturing, Industrial Truck, Tractor, Trailer, and Stacker Machinery Manufacturing

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

All Other Miscellaneous Chemical Product and Preparation Manufacturing, Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding, Plate Work Manufacturing, Machine Tool (Metal Cutting Types) Manufacturing, Special Die and Tool, Die Set, Jig, and Fixture Manufacturing

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

Commercial and Institutional Building Construction, Highway, Street, and Bridge Construction, Poured Concrete Foundation and Structure Contractors, Other Foundation, Structure, and Building Exterior Contractors, Finish Carpentry Contractors

Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding, Plate Work Manufacturing, Machine Tool (Metal Cutting Types) Manufacturing, Special Die and Tool, Die Set, Jig, and Fixture Manufacturing, Welding and Soldering Equipment Manufacturing

Other Foundation, Structure, and Building Exterior Contractors, Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding, Plate Work Manufacturing, Machine Tool (Metal Cutting Types) Manufacturing, Administrative Management and General Management Consulting Services

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

Paint and Coating Manufacturing, All Other Miscellaneous Nonmetallic Mineral Product Manufacturing, Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding, Powder Metallurgy Part Manufacturing, Metal Coating, Engraving (except Jewelry and Silverware), and Allied Services to Manufacturers

Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding, Other Communication and Energy Wire Manufacturing, Current-Carrying Wiring Device Manufacturing, Noncurrent-Carrying Wiring Device Manufacturing, All Other Miscellaneous Electrical Equipment and Component Manufacturing

WELDING

Other Foundation, Structure, and Building Exterior Contractors, Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding, Fabricated Structural Metal Manufacturing, Ornamental and Architectural Metal Work Manufacturing, Automotive Exhaust System Repair

Plumbing, Heating, and Air-Conditioning Contractors, Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding

Other Foundation, Structure, and Building Exterior Contractors, Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding

Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding, Machine Shops, Cutting Tool and Machine Tool Accessory Manufacturing, Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers, Ophthalmic Goods Merchant Wholesalers