It is a important part of sofa. The better springs make the better comfortable when you upon sofas.

Name: Sofas springs compression springs
Model: ZY_T
Material: High carbon steel
Shape: Coil
Wire diameter: 1.8mm-4.5mm
Height: 8cm-16cm
Convolution: 4-12 turns
Head OD: 5-12cm
Barrel OD: 3.8-10cm
Process: Heat treatment antirust treatment
Surface treatment: Galvanize, painting
Packing: Carton, pallet
Payment: T/T, L/C
Port: Shanghai ningbo.