Industrial Door Closer Spring from China
High-torque helical torsion spring from 10.2 mm wire for fire-rated industrial roll-up doors. Classified HTS 7320.20.50.45 meeting helical and wire dimension requirements. 1 million cycle rating.
Duty Rate — China → United States
21.4%
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
• UL 325 certification required for automatic closing mechanisms
• Torque adjustment range documentation prevents underpowered classification
• Heat-treated wire specs confirm high-cycle durability claims