North American Product Classification System (NAPCS) Canada 2017 Version 1.0
- 474 - Packaging materials
- 47416 - Foam products for packaging, of polystyrene or polyurethane
- 474161 - Foam products for packaging, of polystyrene or polyurethane
- 4741611 - Foam products for packaging, of polystyrene or polyurethane
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