| 23320 | Block flooring made of clay (manufacture) |
| 23320 | Blue brick (manufacture) |
| 23320 | Bricks made of ceramic (manufacture) |
| 23320 | Bricks made of clay (manufacture) |
| 23320 | Building materials made of clay (non-refractory) (manufacture) |
| 23320 | Cable conduit made of clay (manufacture) |
| 23320 | Chimney liners made of clay (manufacture) |
| 23320 | Chimney pots made of ceramic (manufacture) |
| 23320 | Chimney pots made of clay (manufacture) |
| 23320 | Conduits made of ceramic (manufacture) |
| 23320 | Conduits made of clay (manufacture) |
| 23320 | Drainpipes and fittings made of clay (manufacture) |
| 23320 | Engineering brick (manufacture) |
| 23320 | Floor and quarry tiles made of unglazed clay (manufacture) |
| 23320 | Flue tiles made of clay (manufacture) |
| 23320 | Hollow partition made of clay (manufacture) |
| 23320 | Pipes and conduits made of clay (manufacture) |
| 23320 | Pipes and fittings made of ceramics (manufacture) |
| 23320 | Pipes made of clay (manufacture) |
| 23320 | Quarry floor brick (manufacture) |
| 23320 | Quarry tile made of clay (manufacture) |
| 23320 | Roofing tiles made of ceramic (manufacture) |
| 23320 | Roofing tiles made of unglazed clay (manufacture) |
| 23320 | Tiles and construction products, made of baked clay (manufacture) |
| 23320 | Unglazed building brick (manufacture) |
| 23320 | |