North American Product Classification System (NAPCS) Canada 2017 Version 2.0
291 - Non-metallic mineral products
This group comprises non-metallic mineral products.
29111 - Clay and ceramic products and refractories
This class comprises clay and ceramic products as well as refractories.
291111 - Refractories
This subclass comprises refractories.
2911111 - Clay refractories
Clay refractories.
Illustrative example(s)
- clay castable refractory materials
- clay ramming mixes
- clay refractories, gunning mixes
- clay refractories, mortars
- clay refractories, trowelling mixes
- clay refractory articles
- clay refractory bricks
- clay stove linings
2911112 - Non-clay refractories
Non-clay refractories.
Illustrative example(s)
- chamfered acid resisting brick
- magnesia cement
- magnesite cement
- non-clay castable refractory materials
- non-clay ramming mixes
- non-clay refractories, gunning mixes
- non-clay refractories, mortars
- non-clay refractories, trowelling mixes
- non-clay refractory bricks
- non-clay stove linings
- refractory-type cement
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