The date of payment from buyers deliver within days
By certification [File Integrity]
According to the customer's door and window profiles, we will configure them with the most suitable pulleys.
Our pulleys have a long service life and are made of stainless steel for adjustable use.
U groove / flat wheel
1. Operational safety
2. Beautiful appearance and high quality
3. Reasonable price
4. IOS certification
5. The material is made of stainless steel to prevent rust.
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 Janes, the concept of “controlling every process and perfecting all products” is curved. Each product will be fully assembled and carefully tested before shipping.