North American Product Classification System (NAPCS) Canada 2017 Version 2.0

162 - Stone, sand, gravel, clay, and refractory minerals

This group comprises stone, sand, gravel, clay, and refractory minerals.

16211 - Stone

This class comprises stone.

16212 - Sand, gravel, clay, and refractory minerals

This class comprises sand, gravel, clay, and refractory minerals.