Air cowls, scoops, or airports (ship ventilators), sheet metal

Awnings, sheet metal

Bins, prefabricated: sheet metal

Booths, spray prefabricated sheet metal

Canopies, sheet metal

Casings, sheet metal

Coal chutes, prefabricated sheet metal

Cooling towers, sheet metal

Cornices, sheet metal

Culverts, sheet metal

Dampers, sheet metal

Door hoods, aluminum

Downspouts, sheet metal

Ducts, sheet metal

Eaves, sheet metal

Elbows for conductor pipe, hot air ducts, and stovepipe: sheet metal

Flooring, cellular steel

Flues, stove and furnace: sheet metal

Flumes, sheet metal

Forming machine work for the trade except stampings: sheet metal

Forms for concrete, sheet metal

Furnace casings, sheet metal

Guardrails, highway: sheet metal

Gutters, sheet metal

Hoods, range sheet metal

Hoppers, sheet metal

Housings for business machines, sheet metal except stamped

Irrigation pipe, sheet metal

Joists, sheet metal

Laundry hampers, sheet metal

Louvers, sheet metal

Machine guards, sheet metal

Mail chutes, sheet metal

Mail collection or storage boxes, sheet metal

Pile shells, sheet metal

Pipe, sheet metal

Post office collection boxes

Radiator shields and enclosures, sheet metal

Restaurant sheet metal work

Roof deck, sheet metal

Sheet metal specialties, not stamped

Siding, sheet metal

Skylights, sheet metal

Spouts, sheet metal

Stove boards, sheet metal

Stove pipe and flues, sheet metal

Studs, sheet metal

Troughs, elevator: sheet metal

Vats, sheet metal

Ventilators, sheet metal

Wells, light: sheet metal