North American Product Classification System (NAPCS) Canada 2017 Version 1.0
- 291 - Non-metallic mineral products
- 29114 - Non-metallic mineral products, n.e.c.
- 291141 - Dressed dimension stone
- 2911411 - Dressed dimension granite
- 2911412 - Dressed dimension limestone
- 2911413 - Dressed dimension marble, slate, sandstone, and other stone n.e.c.
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