Ceramic Check Valve for Wafer Grinding Coolant Lines from China
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 — China → United States
23%
Rate breakdown
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 to this subchapter
9903.88.157.5%Except as provided in headings 9903.88.39, 9903.88.42, 9903.88.44, 9903.88.47, 9903.88.49, 9903.88.51, 9903.88.53, 9903.88.55, 9903.88.57, 9903.88.65, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(r) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(s)
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