Zirconia Grinding Media Balls from China
Sintered zirconia ceramic balls used in ball mills for fine grinding in chemical and pharmaceutical labs. Achieves Mohs hardness of 9+ from yttria-stabilized zirconia, fired per Chapter 69 standards for technical durability. Ideal for abrasion-resistant milling of hard materials.
Duty Rate — China → United States
41.5%
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
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 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(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Import Tips
• Include material composition analysis showing >9 Mohs; declare as technical grinding media to prevent misclassification as toys or games in Chapter 95
• Watch for bulk packaging that might trigger set classifications