North American Industry Classification System (NAICS) 2002

• 31-33 - Manufacturing
• 332 - Fabricated Metal Product Manufacturing
• 3324 - Boiler, Tank and Shipping Container Manufacturing

33241 - Power Boiler and Heat Exchanger Manufacturing

This industry comprises establishments primarily engaged in manufacturing power boilers and parts (including nuclear generated steam), and industrial heat exchangers, by the process of cutting, forming and joining metal plates, bars, sheets, pipe mill products and tubing, to custom or standard design, for factory or field assembly. These establishments may engage in both fabrication and installation.