2017 NAICS Definition

T = Canadian, Mexican, and United States industries are comparable.

327993 Mineral Wool Manufacturing

This U.S. industry comprises establishments primarily engaged in manufacturing mineral wool and mineral wool (i.e., fiberglass) insulation products made of such siliceous materials as rock, slag, and glass or combinations thereof.

Cross-References.

• Establishments primarily engaged in manufacturing metallic scouring pads and steel wool are classified in U.S. Industry 332999, All Other Miscellaneous Fabricated Metal Product Manufacturing.

2007 NAICS		2012 NAICS		2017 NAICS		Corresponding Index Entries
327993		327993		327993		Fiberglass insulation products manufacturing
327993		327993		327993		Insulating batts, fills, or blankets, fiberglass, manufacturing
327993		327993		327993		Mineral wool insulation materials manufacturing
327993		327993		327993		Mineral wool products (e.g., board, insulation, tile) manufacturing