Precast Concrete Tunnel Segments from United States
Ring segments of reinforced concrete for tunnel lining in underground civil engineering projects like subways. Precision-cast with gasket grooves for watertight assembly, these are prefabricated structural components for civil engineering, falling under tariff item 6810.91.00.
Duty Rate — United States → Canada
5%
Import Tips
• Provide quality control documentation for gasket grooves and watertightness testing to CBSA
• Ensure compliance with Canadian tunnel safety standards and fire-resistance requirements
• Coordinate with CBSA for oversized cargo clearance and transport permits