Crystal Boule Grinder from China
Precision grinder for shaping semiconductor crystal boules to exact wafer diameters (150mm-450mm), including flat grinding for conductivity indication. HTS 8448.20.50.90 classification as auxiliary for heading 8444 crystal pullers.
Duty Rate — China → United States
20.8%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 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 boule diameter range and flat positioning specifications in import documentation
• Provide statistical note reference confirming boule preparation function
• Ensure classification distinguishes from general metallurgical grinders