| [331210] Iron and Steel Pipe and Tube Manufacturing from Purchased Steel |
| [332114] Custom Roll Forming |
| [332313] Plate Work Manufacturing |
| [332410] Power Boiler and Heat Exchanger Manufacturing |
| [332420] Metal Tank (Heavy Gauge) Manufacturing |
| [332439] Other Metal Container Manufacturing |
| [332710] Machine Shops |
| [333131] Mining Machinery and Equipment Manufacturing |
| [333132] Oil and Gas Field Machinery and Equipment Manufacturing |
| [333291] Paper Industry Machinery Manufacturing |
| [333292] Textile Machinery Manufacturing |
| [333293] Printing Machinery and Equipment Manufacturing |
| [333294] Food Product Machinery Manufacturing |
| [333516] Rolling Mill Machinery and Equipment Manufacturing |
| [333518] Other Metalworking Machinery Manufacturing |
| [333611] Turbine and Turbine Generator Set Units Manufacturing |
| [333911] Pump and Pumping Equipment Manufacturing |
