2022 NAICS industry group in sector 31-33 Manufacturing

3328 Coating, Engraving, Heat Treating, and Allied Activities

NAICS 3328 is the US industry code for coating, engraving, heat treating, and allied activities. NULL

Official definition

NULL

Source: US Census Bureau, 2022 NAICS descriptions.

Codes in 3328

Inside 33281

Data last changed November 14, 2026. How this page is built.