Phenolic Resin Magnesia-Carbon Well Block from China
A refractory well block for ladle slide gate assemblies, containing 78% magnesia, 18% carbon via flake graphite, bonded with phenolic resin. It forms a stable seating for nozzles in steel pouring systems and is classified under 6815.91.90 as an other article containing magnesia.
Duty Rate — China → Canada
5%
Import Tips
• Document the magnesia content (78%) and carbon content (18%) to support classification under this tariff item
• The phenolic resin bonding agent should be clearly stated
• Verify that the well block is not a tool or part of a tool under Chapter 82, which would exclude it from Chapter 68