Air Purification Equipment Manufacturing, Welding and Soldering Equipment Manufacturing, Electromedical and Electrotherapeutic Apparatus Manufacturing, Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial, Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals

Fabricated Structural Metal Manufacturing, Plate Work Manufacturing, Metal Tank (Heavy Gauge) Manufacturing, Other Metal Container Manufacturing, Precision Turned Product Manufacturing

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

Biological Product (except Diagnostic) Manufacturing, Air Purification Equipment Manufacturing, Electromedical and Electrotherapeutic Apparatus Manufacturing, Surgical Appliance and Supplies Manufacturing

Plumbing, Heating, and Air-Conditioning Contractors, Power Boiler and Heat Exchanger Manufacturing, Machine Shops, Air Purification Equipment Manufacturing, Industrial and Commercial Fan and Blower Manufacturing

All Other Converted Paper Product Manufacturing, Vitreous China, Fine Earthenware, and Other Pottery Product Manufacturing This U.S. industry compris, Air Purification Equipment Manufacturing, All Other Miscellaneous General Purpose Machinery Manufacturing, Other Electronic Component Manufacturing

Fabricated Structural Metal Manufacturing, Plate Work Manufacturing, Mining Machinery and Equipment Manufacturing, Air Purification Equipment Manufacturing