Alumina-Silica Refractory Block from China
Dense refractory blocks with a mixture of over 50% alumina and silica, fired for lining blast furnaces and incinerators. They withstand extreme temperatures and chemical erosion in metallurgical processes. Classified under 6902.20.00 as refractory constructional goods with high alumina-silica content.
Duty Rate — China → Canada
0%
Import Tips
• Confirm the block is fired and contains over 50% alumina and silica combined
• Provide a certificate of analysis to the CBSA to prove composition
• Ensure the block is not an electrical insulator, which would fall under heading 8546