Industrial Door Closer Spring from Germany
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 — Germany → United States
53.9%
Rate breakdown
9903.82.0250%Except as provided for in headings 9903.82.14, 9903.85.67 and 9903.85.68, articles of aluminum, of steel or of copper and derivative aluminum or steel articles, as provided for in subdivisions (c)(i)–(v) of U.S. note 16 to this subchapter
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
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