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Detailed structure and explanatory notes

ISIC Rev.4 code 2391


  • Section: C - Manufacturing
  • Division: 23 - Manufacture of other non-metallic mineral products
  • Group: 239 - Manufacture of non-metallic mineral products n.e.c.
  • Class: 2391 - Manufacture of refractory products

Explanatory note

This class includes:
- manufacture of refractory mortars, concretes etc.
- manufacture of refractory ceramic goods:
· heat-insulating ceramic goods of siliceous fossil meals
· refractory bricks, blocks and tiles etc.
· retorts, crucibles, muffles, nozzles, tubes, pipes etc.

This class also includes:
- manufacture of refractory articles containing magnesite, dolomite or chromite

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