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8402.90.00.90/Downcomer Pipe Section/Canada

Downcomer Pipe Section from Canada

Large-diameter pipe that circulates hot water from boiler drum to lower mud drum in water-tube steam boilers. Classified as HTS 8402.90.00.90 for its role in vapor generating systems.

Duty Rate — Canada → United States

14.3%

Rate breakdown

9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
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Import Tips

• Specify seamless construction and pressure ratings matching boiler design codes

• Pair with riser pipe diagrams to show complete circulation system context