Monocrystalline Boule Polishing Pump Valve Assembly from United States
This specialized valve assembly is designed for polishing pumps used in preparing monocrystalline semiconductor boules for wafer slicing. It controls fluid flow precisely to ensure consistent polishing results. As a part of a liquid pump, it is classified under tariff item 8413.91.00.
Duty Rate — United States → Canada
25%
Rate breakdown
26SUR2525%United States Surtax Order (2026) — 25% on US products
Import Tips
• Classify the valve assembly as a pump part under 8413.91.00, not as a standalone valve
• Provide the pump model and the polishing application to support classification
• Ensure the valve assembly's function is clearly described to avoid misclassification under 8481