Air cowls, sheet metal (except stampings), manufacturing

Awnings, sheet metal (except stampings), manufacturing

Canopies, sheet metal (except stampings), manufacturing

Casings, sheet metal (except stampings), manufacturing

Coal chutes, sheet metal (except stampings), manufacturing

Concrete forms, sheet metal (except stampings), manufacturing

Cornices, sheet metal (except stampings), manufacturing

Cowls, sheet metal (except stampings), manufacturing

Culverts, sheet metal (except stampings), manufacturing

Dampers, sheet metal (except stampings), manufacturing

Door hoods, sheet metal (except stampings), manufacturing

Downspouts, sheet metal (except stampings), manufacturing

Ducts, sheet metal, manufacturing

Eaves, sheet metal (except stampings), manufacturing

Elbows for conductor pipe, hot air ducts, and stovepipe, sheet metal (except stampings), manufacturing

Flooring, sheet metal (except stampings), manufacturing

Flues, stove and furnace, sheet metal (except stampings), manufacturing

Flumes, sheet metal (except stampings), manufacturing

Forms, concrete, sheet metal (except stampings), manufacturing

Furnace casings, sheet metal (except stampings), manufacturing