Establishments primarily engaged in manufacturing concrete products, except block and brick, from a combination of cement and aggregate. Contractors engaged in concrete construction work are classified in Division C, Construction, and establishments primarily engaged in mixing and delivering ready-mixed concrete are classified in Industry 3273.

• Areaways basement window: concrete
• Art marble, concrete
• Ashlar, cast stone
• Bathtubs, concrete
• Battery wells and boxes, concrete
• Building materials, concrete: except block and brick
• Building stone, artificial: concrete
• Burial vaults, concrete and precast terrazzo
• Cast stone, concrete
• Catch basin covers, concrete
• Ceiling squares, concrete
• Chimney caps, concrete
• Church furniture, concrete
• Columns, concrete
• Concrete products, precast: except block and brick
• Concrete, dry mixture
• Conduits, concrete
• Copings, concrete
• Cribbing, concrete
• Crossing slabs, concrete
• Culvert pipe, concrete
• Cylinder pipe, prestressed concrete
• Cylinder pipe, pretensioned concrete
• Door frames, concrete
• Drain tile, concrete
• Fireplaces, concrete
• Floor filler tiles, concrete
• Floor slabs, precast concrete
• Floor tile, precast terrazzo
• Fountains, concrete
• Fountains, wash: precast terrazzo
• Garbage boxes, concrete
• Grave markers, concrete
• Grave vaults, concrete
• Grease traps, concrete
• Housing components, prefabricated: concrete
• Incinerators, concrete
• Irrigation pipe, concrete
• Joists, concrete
• Laundry trays, concrete
• Lintels, concrete
• Manhole covers and frames, concrete
• Mantels, concrete
• Mattresses for river revetment, concrete articulated
• Meter boxes, concrete
• Monuments, concrete
• Panels and sections, prefabricated: concrete
• Paving materials, prefabricated concrete, except blocks
• Pier footings, prefabricated concrete
• Piling, prefabricated concrete
• Pipe, concrete
• Pipe, lined with concrete
• Poles, concrete
• Posts, concrete
• Pressure pipe, reinforced concrete
• Prestressed concrete products
• Roofing tile and slabs, concrete
• Septic tanks, concrete
• Sewer pipe, concrete
• Shower receptors, concrete
• Siding, precast stone
• Sills, concrete
• Silo staves, cast stone
• Silos, prefabricated concrete
• Slabs, crossing: concrete
• Spanish floor tile, concrete
• Squares for walls and ceilings, concrete
• Steps, prefabricated concrete
• Stone, cast concrete
• Stools, precast terrazzo
• Storage tanks, concrete
• Tanks, concrete
• Terrazzo products, precast
• Thresholds, precast terrazzo
• Ties, railroad: concrete
• Tile, precast terrazzo or concrete
• Tombstones, precast terrazzo or concrete
• Wall base, precast terrazzo
• Wall squares, concrete
• Wash foundations, precast terrazzo
• Well curbing, concrete
• Window sills, cast stone