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Compare official labels, inclusions, exclusions, examples, hierarchy, mappings, and practical fit notes.
Use this class for manufacture of cement when the main activity includes Manufacture of clinker and hydraulic cements, including Portland cement, aluminous cement, slag cement, supersulphate cement and similar hydraulic cements, whether or not coloured or in the form of clinker. Check exclusions and nearby codes before applying it to a mixed activity.
Use this class for manufacture of refractory products when the main activity includes Manufacture of intermediate products from mined or quarried non-metallic minerals (e.g. gravel, stone or clay) and Manufacture of refractory mortars, concretes, etc.. Check exclusions and nearby codes before applying it to a mixed activity.
Use this class for manufacture of ready-mixed concrete when the main activity includes Manufacture of concrete ready to pour, i.e. to which water has already been added and which is usually transported in concrete mixer lorries. Check exclusions and nearby codes before applying it to a mixed activity.
Use this class for manufacture of mortars when the main activity includes Manufacture of non-refractory mortars and of concrete not yet mixed with water. Check exclusions and nearby codes before applying it to a mixed activity.
Use this class for manufacture of fibre cement when the main activity includes Manufacture of panels, boards, tiles, blocks and similar articles of vegetable substances (e.g. wood wool, straw, reeds, rushes) agglomerated with cement, plaster or other mineral binders and Manufacture of articles of asbestos cement or cellulose fibre cement. Check exclusions and nearby codes before applying it to a mixed activity.
A short checklist before choosing one code over another.
These codes share C MANUFACTURING > 23 Manufacture of other non-metallic mineral products before they diverge.
23.51, 23.63, 23.64, 23.65 already list another compared code as related or often confused.
23.51, 23.63, 23.64, 23.65 include official exclusions that may point to a better-fitting code.
| Comparison field | 23.51 | 23.20 | 23.63 | 23.64 | 23.65 |
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| Official title | Manufacture of cement | Manufacture of refractory products | Manufacture of ready-mixed concrete | Manufacture of mortars | Manufacture of fibre cement |
| Plain-language summary | Use this class for manufacture of cement when the main activity includes Manufacture of clinker and hydraulic cements, including Portland cement, aluminous cement, slag cement, supersulphate cement and similar hydraulic cements, whether or not coloured or in the form of clinker. Check exclusions and nearby codes before applying it to a mixed activity. | Use this class for manufacture of refractory products when the main activity includes Manufacture of intermediate products from mined or quarried non-metallic minerals (e.g. gravel, stone or clay) and Manufacture of refractory mortars, concretes, etc.. Check exclusions and nearby codes before applying it to a mixed activity. | Use this class for manufacture of ready-mixed concrete when the main activity includes Manufacture of concrete ready to pour, i.e. to which water has already been added and which is usually transported in concrete mixer lorries. Check exclusions and nearby codes before applying it to a mixed activity. | Use this class for manufacture of mortars when the main activity includes Manufacture of non-refractory mortars and of concrete not yet mixed with water. Check exclusions and nearby codes before applying it to a mixed activity. | Use this class for manufacture of fibre cement when the main activity includes Manufacture of panels, boards, tiles, blocks and similar articles of vegetable substances (e.g. wood wool, straw, reeds, rushes) agglomerated with cement, plaster or other mineral binders and Manufacture of articles of asbestos cement or cellulose fibre cement. Check exclusions and nearby codes before applying it to a mixed activity. |
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| Parent hierarchy | C MANUFACTURING > 23 Manufacture of other non-metallic mineral products > 23.5 Manufacture of cement, lime and plaster > 23.51 Manufacture of cement | C MANUFACTURING > 23 Manufacture of other non-metallic mineral products > 23.2 Manufacture of refractory products > 23.20 Manufacture of refractory products | C MANUFACTURING > 23 Manufacture of other non-metallic mineral products > 23.6 Manufacture of articles of concrete, cement and plaster > 23.63 Manufacture of ready-mixed concrete | C MANUFACTURING > 23 Manufacture of other non-metallic mineral products > 23.6 Manufacture of articles of concrete, cement and plaster > 23.64 Manufacture of mortars | C MANUFACTURING > 23 Manufacture of other non-metallic mineral products > 23.6 Manufacture of articles of concrete, cement and plaster > 23.65 Manufacture of fibre cement |
| Rev. 2 mapping |
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