Servo-Controlled Hydraulic Pressure Reducing Valve for Wafer Lappers from China
A servo-controlled hydraulic valve that precisely regulates lapping pressure on semiconductor wafers to achieve critical flatness specifications before fabrication. This pressure-reducing valve is classified under tariff item 8481.10.00 as a hydraulic fluid power pressure-reducing valve.
Duty Rate — China → Canada
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Import Tips
• Document the valve's pressure-reducing function clearly, as servo-controlled valves may be scrutinized by CBSA
• Consider whether the valve is part of a larger machine and if Section XVI Note 3 or 4 applies
• Verify if the importer requires a business number and customs broker for clearance