Aluminum Extruded Product Manufacturing, Hand and Edge Tool Manufacturing, Machine Shops, Precision Turned Product Manufacturing, Bolt, Nut, Screw, Rivet, and Washer Manufacturing

8(a)

Machine Tool (Metal Cutting Types) Manufacturing, Machine Tool (Metal Forming Types) Manufacturing, Special Die and Tool, Die Set, Jig, and Fixture Manufacturing

All Other Plastics Product Manufacturing, Industrial Mold Manufacturing, Special Die and Tool, Die Set, Jig, and Fixture Manufacturing

Iron and Steel Mills, Metal Stamping, Cutlery and Flatware (except Precious) Manufacturing, Hand and Edge Tool Manufacturing, Sheet Metal Work Manufacturing

All Other Plastics Product Manufacturing, Hardware Manufacturing, Machine Shops, Precision Turned Product Manufacturing, Bolt, Nut, Screw, Rivet, and Washer Manufacturing

Hand and Edge Tool Manufacturing, Special Die and Tool, Die Set, Jig, and Fixture Manufacturing

Belting

Industrial Mold Manufacturing, Machine Tool (Metal Cutting Types) Manufacturing, Machine Tool (Metal Forming Types) Manufacturing, Special Die and Tool, Die Set, Jig, and Fixture Manufacturing, Cutting Tool and Machine Tool Accessory Manufacturing

Precision Turned Product Manufacturing, All Other Miscellaneous Fabricated Metal Product Manufacturing, Special Die and Tool, Die Set, Jig, and Fixture Manufacturing

Machine Shops, Precision Turned Product Manufacturing, Metal Heat Treating, Metal Coating, Engraving (except Jewelry and Silverware), and Allied Services to Manufacturers, All Other Miscellaneous Fabricated Metal Product Manufacturing

Sheet Metal Work Manufacturing, Industrial Valve Manufacturing, Ball and Roller Bearing Manufacturing, Small Arms Manufacturing, Special Die and Tool, Die Set, Jig, and Fixture Manufacturing

Hardware Manufacturing, Bolt, Nut, Screw, Rivet, and Washer Manufacturing, Industrial Valve Manufacturing, Farm Machinery and Equipment Manufacturing, Mining Machinery and Equipment Manufacturing

Metal Stamping, Metal Window and Door Manufacturing, Power Boiler and Heat Exchanger Manufacturing, Hardware Manufacturing, All Other Miscellaneous Fabricated Metal Product Manufacturing

Plate Work Manufacturing, Sheet Metal Work Manufacturing, Machine Shops, Precision Turned Product Manufacturing, Bolt, Nut, Screw, Rivet, and Washer Manufacturing

Hardware Manufacturing, Machine Shops, Precision Turned Product Manufacturing, Bolt, Nut, Screw, Rivet, and Washer Manufacturing, Small Arms Manufacturing

Special Die and Tool, Die Set, Jig, and Fixture Manufacturing

Precision Turned Product Manufacturing, Bolt, Nut, Screw, Rivet, and Washer Manufacturing, Other Metal Valve and Pipe Fitting Manufacturing, Special Die and Tool, Die Set, Jig, and Fixture Manufacturing, Other Aircraft Parts and Auxiliary Equipment Manufacturing

Hand and Edge Tool Manufacturing, Plate Work Manufacturing, Hardware Manufacturing, Machine Shops, Precision Turned Product Manufacturing

Machine Shops, Precision Turned Product Manufacturing, Construction Machinery Manufacturing, Mining Machinery and Equipment Manufacturing, Plastics and Rubber Industry Machinery Manufacturing