Plastic Clay Refractory Rammer Mix Bricks from Canada
Pre-formed bricks from plastic clay ramming mixes for repairing furnace linings, fired after on-site shaping. HTS 6902.90.50.10 applies to these clay refractory blocks. Used in maintenance of glass melting tanks and ladles.
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
• Document both factory pre-forming and firing processes to establish 'shaped and fired' status
• Test for bulk density (<2.0 g/cm³) typical of clay refractories to support classification
• Separate from dry powder mixes which classify under chemical preparations (Chapter 38)