bonnell spring Features:

1, bonnell spring Size : all size is available. Base on customer’s requirement

Example:

Wire diameter: 1.7 mm—2.4mm

Border wire diameter: 4.0 mm--5.0 mm

Helical wire diameter: 1.6 mm--1.8 mm

coil Diameter: 65 mm--90 mm

Mid-coil diameter:45 mm—60mm

Turns: 4—7

2 bonnell spring Application: used for mattresses

3,bonnell spring Characteristic: The Bonnell spring is the classic Spring Unit, and through the years, proven its worth. It is made from around hourglass shaped springs which are tied together to form a mat. A round helical crosswise connects each single spring to a spring unit. The quality is guaranteed by the careful selection of the materials used and regular quality control.