Manufacturing of sheet metal air-conditioning ducts (including dust collection ducts), stove pipe, furnace smoke pipe, and elbows

Facility	City	State	Employees	Status
Highland Engineering, INC.	Howell	MI	20–99	● ACTIVE
Historical Arts & Casting, INC	West Jordan	UT	20–99	● ACTIVE
Hoosier Pattern, INC.	Decatur	IN	—	● ACTIVE
Hussey Seating Company	North Berwick	ME	100–499	● ACTIVE
Ideal Manufacturing INC	Billings	MT	20–99	● ACTIVE
Imperial Carbide INC	Meadville	PA	20–99	● ACTIVE
Imperial Ornamental Metal Co., INC.	Fenton	MO	20–99	● ACTIVE
Industrial Heater CORP	Cheshire	CT	20–99	● ACTIVE
Industrial Louvers INC	Delano	MN	20–99	● ACTIVE
IPIndustrial Precision, INC	Westfield	MA	20–99	● ACTIVE
Inner-tite CORP	Holden	MA	20–99	● ACTIVE
Interlaken Technology Company, LLC	Chaska	MN	—	● ACTIVE
International Commerce & Marketing CORP.	Milwaukee	WI	100–499	● ACTIVE
IMInternational Manufacturing & Engineering LLC	Hayward	CA	—	● ACTIVE
International Mezzo Technologies, INC	Baton Rouge	LA	20–99	● ACTIVE
Interstate Gratings, LLC	Lindon	UT	20–99	● ACTIVE
Ixom Watercare INC	Dickinson	ND	20–99	● ACTIVE
J & a Manufacturing, INC.	Garland	TX	20–99	● ACTIVE
JSJbc Steel Products, LLC	Dallas	TX	20–99	● ACTIVE
Jersey Shore Steel CO	Jersey Shore	PA	100–499	● ACTIVE
Jesco Industries, INC.	Litchfield	MI	20–99	● ACTIVE
J. H. Botts, LLC	Joliet	IL	20–99	● ACTIVE
John W. Mcdougall Co., INC.	Nashville	TN	100–499	● ACTIVE
Kalman Manufacturing, INC	Morgan Hill	CA	20–99	● ACTIVE
Kennametal INC	La Vergne	TN	100–499	● ACTIVE

FactoryRegistry lists 10,034 facilities whose primary industry classification is one of the 3 industries above. This is a list by industry, not a list of makers: Census reports that establishments in these industries produced sheet metal air-conditioning ducts (including dust collection ducts), stove pipe, furnace smoke pipe, and elbows, in the shares shown above, and does not say which establishments. Where a plant’s own website or a federal registry names what that plant makes, it appears on the plant’s own page with the source named.

The U.S. Census Bureau recorded this product line in 3 US manufacturing industries in the 2022 Economic Census, as the most specific line those industries reported. At least 667 establishments reported producing it; the count for 1 of those industries was withheld.

These are counts of establishments by industry: the Economic Census publishes them as industry totals and never as a list of plants.

NAPCS collection code 2038675000. Source for the product line, the establishment counts and the shares: U.S. Census Bureau, 2022 Economic Census (ECNNAPCSIND2022). Federal source data is public domain. Facility records are compiled separately by FactoryRegistry and carry their own sources.