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| 2813 | Air pre-heaters for boilers, manufacturing | |
| 2813 | Barometric condensers, manufacturing | |
| 2813 | Boiler casings, manufacturing | |
| 2813 | Boilers, power, manufacturing | |
| 2813 | Condenser boxes, metal, manufacturing | |
| 2813 | Condensers, steam, manufacturing | |
| 2813 | Economizers (i.e., power boiler apparatus), manufacturing | |
| 2813 | Intercooler shells, manufacturing | |
| 2813 | Marine power boilers, manufacturing | |
| 2813 | Nuclear bundles and control rods, made from purchased fuel | |
| 2813 | Nuclear reactor control rod drive mechanisms, manufacturing | |
| 2813 | Nuclear reactor steam supply systems, manufacturing | |
| 2813 | Nuclear reactors, manufacturing | |
| 2813 | Nuclear shielding, fabricated metal plate, manufacturing | |
| 2813 | Power boilers, manufacturing | |
| 2813 | Reactor containment vessels, fabricated metal plate, manufacturing | |
| 2813 | Reactors, nuclear, manufacturing | |
| 2813 | Stationary power boilers, manufacturing | |
| 2813 | Steam condensers, manufacturing | |
| 2813 | Superheaters for boilers, manufacturing | |