North American Product Classification System (NAPCS) Canada 2017 Version 1.0
- 466 - Metal building and construction materials
- 46614 - Other architectural metal products
- 466145 - Metal work for heating and air-conditioning systems
4661451 - Ventilation ducts and stove pipe
Rigid ventilation ducts and stove pipe made of sheet metal.
Illustrative example(s)
- air conditioning or heating ducts, iron or steel, custom roll formed
- aluminum air conditioning tubes
- aluminum alloy air conditioning tubes
- aluminum alloy stove pipes
- aluminum stove pipes
- aluminum ventilation ducts and stove pipes, custom roll formed
- ducts, air conditioning or heating, iron or steel, sheet metal
- sheet metal ducts for heating, ventilating, and air conditioning
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