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mattress bonnell spring unit / inner bonnell coil spring unit for mattress/mattress inner spring bonnell spring unit

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Address: sales@insulator.tech,Changjiang No.1,Tianshan industry park,High-tech zone,Shijiazhuang,Hebei,China

Contact name:lizzybai

mattress inner spring bonnell spring unit

Product Details

Twin size: 36.5*73 Full size: 51.5*73

Queen size :58.5*78 King size: 74.5*78

height 8-23cm
turn 4-7
spring steel wire 2.0 - 2.4mm
helical steel wire 1.3 - 1.5mm
borde rod 4.0 - 5.0mm

End diameter: 8.2-8.8cm

Middle diameter: 4.0-4.8cm

Bonnell spring coils

Chain of pocket spring units

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