1. Knitting Cover(650g/m)
Foam (1cm(H),25kg/m3density)+4000#
polyester wadding
2.Foam Layer:1.5cm(H),30kg/m3 density =>for
top of spring
3.Pocket Spring:14cm(H),wire gauge 2.0mm,
5 turn
4.Foam Layer:1.5cm(H),30kg/m3 density=>for
bottom of spring
5. Foam(1cm(H),25kg/m3 density)+4000#
polyester wadding