Ceramic Check Valve for Wafer Grinding Coolant Lines from Japan
Hand-operated ceramic check valve preventing backflow in coolant systems for wafer grinders and lappers in semiconductor preparation. HTS 8481.90.5000 covers ceramic as 'other materials' for check valve parts in precise flatness processing equipment.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Include hardness and abrasion resistance specs proving suitability for grinding applications
• Label as 'semiconductor check valve part' to align with statistical notes on wafer prep