Manufacture of concrete products for construction purposes

This class includes: - manufacture of precast concrete, cement or artificial stone articles for use in construction: • tiles, flagstones, building blocks, bricks, boards, sheets, panels, pipes, posts, etc. - manufacture of prefabricated structures and structural components for building or civil engineering, traffic control and obstruction, of cement, concrete or artificial stone - manufacture of prefabricated factory-made elements of brick for construction of prefabricated structures to be used in landscaping and retaining wall, wastewater and stormwater management, and underground utilities - manufacture of factory-made elements with concrete - manufacture of prefabricated concrete pipes for drinking water

This class also includes: - manufacture of calcium silicate masonry units - manufacture of autoclaved aerated concrete masonry units

This class excludes: - manufacture of other articles of concrete, cement and plaster not for use in construction, see 23.66