Constant Torque Springs
Yongsheng produces a variety of constant torque springs, they are wildly used in window blinds, automatic retractable devices.
Want to customize your ideal constant torque springs, go to the website: https://www.yshspring.com/constant-to...
Yongsheng is the leading manufacturer of flat coil springs in China, high quality with affordable price, quick sampling in 2 days, contact us now!
