North American Product Classification System (NAPCS) Canada 2017 Version 2.0
- 291 - Non-metallic mineral products
- 29111 - Clay and ceramic products and refractories
- 291111 - Refractories
- 2911111 - Clay refractories
- 2911112 - Non-clay refractories
- 291112 - Ceramic tile, and other structural and architectural ceramic products
- 2911121 - Ceramic floor and wall tile (including quarry tile)
- 2911122 - Building bricks, clay roofing tiles, clay sewer pipes and other structural and architectural ceramic products
- 291113 - Vitreous enamelled sanitary ware, and vitreous, semi-vitreous and earthenware products n.e.c.
- 2911131 - Vitreous plumbing fixtures
- 2911132 - Vitreous and semi-vitreous table and kitchenware products
- 2911133 - Vitreous china and fine earthenware products
- 2911134 - Ceramic decorative articles
- 2911135 - Electrical, laboratory and industrial products of porcelain, steatite and other ceramics
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