North American Product Classification System (NAPCS) Canada 2017 Version 2.0
- 551 - Wholesale services (except commissions)
- 55118 - Intermediate products at wholesale
- 551187 - Metal ores and concentrates and non-metallic minerals, at wholesale
- 5511871 - Metal ores and concentrates (including precious metal bullion), at wholesale
- 5511872 - Clay, refractory minerals, industrial sand, and non-metallic minerals n.e.c., at wholesale
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