Wafer Fab Turbine Exhaust Diffuser from China
Custom diffusers recover pressure from high-velocity turbine exhaust while maintaining laminar flow in semiconductor cleanrooms, preventing particle re-entrainment. HTS 8411.99.90 as other gas turbine parts for wafer manufacturing facilities. Aerodynamic design minimizes turbulence near processing tools.
Duty Rate — China → United States
39.9%
Rate breakdown
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]
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Include CFD analysis showing velocity profiles and particle trajectory modeling
• Specify materials (6061-T6 aluminum, electropolished) meeting SEMI cleanroom standards
• Document pressure recovery efficiency (>85%) and flow uniformity specifications