North American Product Classification System (NAPCS) Canada 2017 Version 1.0
291 - Non-metallic mineral products
This group comprises non-metallic mineral products.
29113 - Glass and glass products (except automotive glass and automotive mirrors)
This class comprises glass and glass products, except automotive glass and automotive mirrors.
291134 - Multiple-walled insulating units of glass
This subclass comprises multiple-walled insulating units of glass.
2911341 - Multiple-walled insulating units of glass
Multiple-walled insulating units of glass.
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