Description

Mattress springs are made of high carbon steel .
Bonnell spring are made by open coil spring, clips ,and steel wire border .
The springs wire diameter is 1.8mm*2.4mm.
The helical wire diameter is 1.4mm*1.6mm.
The border wire diameter is 4.0mm,4.2mm,4.8mm,ect.
The spring turns are determetered  by the spring height.
All foreign market sizes are available, twin,full,queen,king,ect. The specification can be made as per customers 's requirements.
Flat packing and roll packing are available.
Place of origin is China.