32720 - Concrete products (Miscellaneous)
32721 - Concrete pipe
3272112 - - Culvert pipe: Reinforced: =>36 in.
3272114 - - Culvert pipe: Reinforced: <36 in.
3272117 - - Culvert pipe: Nonreinforced
3272121 - - Storm sewer pipe: Reinforced: =>36 in.
3272124 - - Storm sewer pipe: Reinforced: <36 in.
3272125 - - Storm sewer pipe: Nonreinforced
3272126 - - Sanitary sewer pipe: Reinforced: =>24 in.
3272127 - - Sanitary sewer pipe: Reinforced: <24 in.
3272130 - - Sanitary sewer pipe: Nonreinforced
3272131 - - Pressure pipe: Reinforced concrete pressure pipe
3272132 - - Pressure pipe: Prestressed concrete cylinder pipe
3272136 - - Pressure pipe: Pretensioned concrete cylinder pipe
3272137 - - Pretensioned concrete cylinder pipe & other Pressure pipe
3272139 - - Pressure pipe + Reinforced concrete cylinder pipe & Prestressed concrete noncylinder pipe (General)
3272151 - - Irrigation pipe & Drain tile
3272198 - - Concrete pipe (General) Manholes & Conduits
3272199 - - Concrete pipe (Miscellaneous)
32722 - Precast concrete products
3272213 - - Roof & Floor units: Slabs & Tile
3272217 - - Roof & Floor units: Joists & Beams
3272223 - - Architectural wall panels
3272225 - - Piling, Posts & Poles
3272227 - - Cast stone (Products for Architectural purposes, except architectural wall panels, such as Window sills, Ashlar, Coping, etc.)
3272228 - - Prefabricated building systems, primarily concrete, Complete units & Panel or Modular form
3272229 - - Precast concrete construction or Building products + Prefabricated housing components, Reinforced columns, etc.
3272233 - - Burial vaults & Boxes: Vaults
3272235 - - Burial vaults & Boxes: Boxes
3272241 - - Silo staves
3272261 - - Septic tanks
3272271 - - Dry-mixed concrete materials + Prepackaged sand, Gravel & Cement, Mortar & Cement premixes
3272284 - - Wash sinks, Service sinks, Mop sinks, Sink & Laundry tray combinations, etc., made of Concrete & other Materials
3272298 - - Precast concrete products (General) + Garden furniture, Storage tanks, etc.
3272299 - - Precast concrete products (Miscellaneous)
32723 - Prestressed concrete products
3272311 - - Single tees, Double tees & Channels
3272323 - - Piling, Bearing piles & Sheet piles
3272325 - - Bridge beams
3272327 - - Joists, Girders & Beams (other than Bridge beams)
3272331 - - Solid & Hollow cored slabs & Panels
3272398 - - Prestressed concrete products (General) + Arches, Columns, etc.
3272399 - - Prestressed concrete products (Miscellaneous)
3272XX0 - - Concrete products (Miscellaneous - Volume)
3272XX2 - - Concrete products (Miscellaneous - Speciality)