Refractory Kiln Plug from Canada
Cordierite ceramic plug sealing peepholes in pottery kilns, withstands thermal cycling. HTS 6903.90.00.50 for other refractory plugs, fired from clay-silica mixes.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Specify thermal expansion coefficient matching kiln; batch certificates for consistent firing; distinguish from building materials