Juxin bonnell spring unit has its springs arranged in rows which are connected to each other by a spiral helical wire.
With inexpensive price and durability,it is widely approved by customers from North America,South America ,Southeast Asia and Africa.
We use Grade A wire to make the spring coils,so the bonnell spring unit have Strong support and more durable.
If you want to know more about our product, please contact us on alibaba.com.