North American Product Classification System (NAPCS) Canada 2017 Version 1.0
- 162 - Stone, sand, gravel, clay, and refractory minerals
- 16211 - Stone
- 162111 - Rough dimension stone
- 1621111 - Rough dimension stone
- 162112 - Crushed stone
- 1621121 - Crushed stone
- 16212 - Sand, gravel, clay, and refractory minerals
- 162121 - Construction sand and gravel
- 1621211 - Construction sand and gravel
- 162122 - Industrial sand
- 1621221 - Industrial sand
- 162123 - Clay and refractory minerals
- 1621231 - Clay and refractory minerals
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