The data published with NAICS code 333415 include the following SIC industries:
3443 Fabricated plate work, boiler shops (pt)
3585 Refrigeration and heating equipment (pt)
This definition comes from the 1997 NAICS manual. However, for this industry, the 1997 Economic Census Manufacturing did not fully implement the conversion to NAICS. Data for NAICS industry 333415 include establishments primarily engaged in the manufacture of metal cooling towers. The NAICS definitions will be fully implemented with the 2002 Economic Census.