NAF 23.20Y—Manufacture of refractory products

Where 23.20Y sits

1. C Manufacturing industry
2. 23 Manufacture of other non-metallic mineral products
3. 23.2 Manufacture of refractory products
4. 23.20 Manufacture of refractory products
5. 23.20Y Manufacture of refractory products

What 23.20Y includes

• Manufacture of intermediate products from non-metallic minerals extracted from mines or quarries (for example gravel, stone or clay)
• The manufacture of mortars and concretes, etc refractory.
• The manufacture of articles of ceramics, refractories, for example: • items of ceramic thermal insulation in siliceous fossil meals • bricks, slabs and tiles, refractory, etc, • retorts, crucibles, muffles, cops, tubes, pipes, etc
• The manufacturing of items containing refractory magnesium oxide, oxide magnesium calcium or chromite

23.20Y in other systems