North American Product Classification System (NAPCS) Canada 2017 Version 2.0
- 291 - Non-metallic mineral products
- 29112 - Concrete products
- 291123 - Other precast and prestressed concrete products
- 2911231 - Precast concrete products, n.e.c.
- 2911232 - Prestressed concrete products, n.e.c.
- Date modified: