Coil spring, zigzag spring , nosag spring sinuous spring, coil spring, sofa spring , seat spring, back spring belong high tensile steel wire.

1) Material:   High carbon steel wire 82#

2) Wire diameter:  3.0mm-4.3mm

3) Caliber diameter : 8cm-13

4) Heart diameter : 4cm-6cm

5) Height : 10cm-20cm

6) Turns: 4-9 turns

7) process : All springs are with heat treatment and anti-rust reatment.

8) Usage : for sofa

9)Performance:

Close-fitting comfort: free combination create varying degrees comfortable feeling.

Supernormal durability: heavy gauge, big size, more convolutions spring coils provide a great steady system.

Stable quality: Quanli’s high tempered spring technology provide consistent quality product.

10) Advantage

--High quality material

--All the spring with heat treatment and antr-rust treatment

 ---Resonable price and enjoy good reputation

--With 10 years experience and attend fair,we can provide you exellent quality and best price