Steel Diaphragm Valve for Wafer Lapping Slurry Control from China
Hand-operated steel diaphragm valve component regulating abrasive slurry flow in wafer lappers and polishers for semiconductor surface flatness. Under HTS 8481.90.3000 as steel part of hand-operated valves in wafer preparation equipment. Prevents particle contamination during critical polishing steps.
Duty Rate — China → United States
22.5%
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 slurry compatibility test reports; label as semiconductor equipment part to avoid general valve classification; check for anti-dumping on steel