Manufacture of clay building materials

This class includes: - manufacture of non-refractory ceramic hearth or wall tiles, mosaic cubes etc. - manufacture of non-refractory ceramic flags and paving

This class excludes: - manufacture of artificial stone (e.g. cultured marble), see 22.23 - manufacture of refractory ceramic products, see 23.20 - manufacture of ceramic bricks and roofing tiles, see 23.32