32510 - Brick & Structural clay tile
3251011 - - Brick (Building or Common & Face)
3251019 - - Brick (Miscellaneous, Paving, Floor & Sewer)
3251020 - - Glazed brick & Structural hollow tile
3251031 - - Facing tile (Structural) & Ceramic glazed brick: Ceramic glazed + Glazed brick
3251051 - - Facing tile (Structural) & Ceramic glazed brick: Unglazed & Salt glazed
3251061 - - Structural clay tile (Nonload bearing & Load bearing)
3251099 - - Glazed brick & Structural hollow tile (Miscellaneous)
3251XX0 - - Brick & Structural clay tile (Miscellaneous - Volume)
3251XX2 - - Brick & Structural clay tile (Miscellaneous - Speciality)