2366 Manufacture of other articles of concrete, cement and plaster

23.66.1 Other articles of concrete, cement and plaster
23.66.11 Articles of plaster or compositions based on plaster
23.66.12 Other articles of cement, concrete or artificial stone
23.66.9 Sub-contracted operations as part of manufacturing of other articles of concrete, cement and plaster
23.66.99 Sub-contracted operations as part of manufacturing of other articles of concrete, cement and plaster