North American Product Classification System (NAPCS) Canada 2017 Version 2.0
291 - Non-metallic mineral products
This group comprises non-metallic mineral products.
29112 - Concrete products
This class comprises concrete products.
291121 - Concrete blocks and bricks
This subclass comprises concrete blocks and bricks.
291122 - Concrete pipes and fittings
This subclass comprises concrete pipes and fittings.
291123 - Other precast and prestressed concrete products
This subclass comprises other precast and prestressed concrete products.
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