This single wheel is resistant to cold and water, and is not affected by temperature differences.
U groove / flat wheel
1. Easy to install and safe to operate
2. Beautiful appearance and high quality
3. Reasonable price
4. IOS certification
5. Height adjustable
Why choose Jia Nai Si?
1.Q: Do you have after-sales support?
A: Yes, we are happy to make suggestions on the pulley problem and maintenance. We also have skilled technicians to help you online.
2.Q: How does your pulley compare to other big companies in the market?
A: We have individual patents, have been researching and improving, only for better service.
3.Q: How does your factory handle quality control?
A: Quality is a priority. For all Jia Nai Si , the concept of “controlling every process and perfecting all products” is curved. Each product will be fully assembled and carefully tested before shipping.