1. This is spring is for mattress.

2. Wire thickness: 2.2mm or 2.3mm

3. Border wire: 4.8mm

4. Helical wire: 1.4mm

5. Single size, Double size, Queen size and so on.

6. This bonnel spring is composed by coil spring units. It is always used for sofa mat and mattress. And we can add a board wire to the side of the products. We can design many different shapes as you like.

With advanced equipment and many years expirence, these products are very saleable in EU.

combined spring

futon spring.

Bonnell spring for mattress