Desmear Electrolytic Etcher from China
Electrolytic etcher for desmear processing of drilled PCB holes prior to plating. Removes resin smear via anodic dissolution in production circuit boards. Classified 8543.30.2000 for electrolysis apparatus principally used in printed circuit manufacture.
Duty Rate — China → United States
37.5%
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
9903.88.0125%Except as provided in headings 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 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(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]
Import Tips
• Include drill smear chemistry analysis matching standard FR4/ resin systems
• Document etcher flow rates calibrated for typical PCB production throughput
• Specify anodic basket configurations for permanganate-based desmear solutions