Zirconia Grinding Media Balls from Mexico
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 — Mexico → United States
14%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
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