Music Wire Extension Helical Spring from Japan
A precision extension helical spring made from high-carbon music wire, under 5.1 mm in diameter, used in garage door mechanisms. This spring provides the necessary tension for the door's counterbalance system. It falls under tariff item 7320.20.00 as a helical spring of iron or steel.
Duty Rate — Japan → Canada
0%
Import Tips
• Confirm the spring is made of iron or steel and is helical in shape
• If the spring is imported as part of a complete garage door system, it may be classified under Chapter 83
• Provide detailed specifications, including wire diameter and material grade, to support classification