Other Electric Power Generation, Iron and Steel Mills, Iron and Steel Pipe and Tube Manufacturing from Purchased Steel, Iron and Steel Forging, Industrial Valve Manufacturing

Mechanical Power Transmission Equipment Manufacturing, Fluid Power Cylinder and Actuator Manufacturing, Aircraft Manufacturing, Aircraft Engine and Engine Parts Manufacturing, Guided Missile and Space Vehicle Propulsion Unit and Propulsion Unit Parts Manufacturing

Sheet Metal Work Manufacturing, Hardware Manufacturing, Other Fabricated Wire Product Manufacturing, Metal Heat Treating, Metal Coating, Engraving (except Jewelry and Silverware), and Allied Services to Manufacturers

Petrochemical Manufacturing, Alumina Refining, Machine Shops, Air Purification Equipment Manufacturing, Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use

Motor Vehicle Steering and Suspension Components (except Spring) Manufacturing, All Other Transportation Equipment Manufacturing, Motor Vehicle Supplies and New Parts Merchant Wholesalers

Sheet Metal Work Manufacturing, All Other Miscellaneous General Purpose Machinery Manufacturing, Motor Vehicle Brake System Manufacturing, Motor Vehicle Transmission and Power Train Parts Manufacturing, All Other Transportation Equipment Manufacturing