hardware endless spring is used for the sofa. 1. material: iron and plastic cover 2. thickness : 1.0mm 3. usage: sofa

Protechmaterial is a leading manufacturer in china.  And it's a professional factory in China.

We have built factory since 1983. So we have many professinal wokers to do it well.

The endless spring is used for the sofa. So it also called sofa spring and coil spring .

1. material: iron and plastic cover2. thickness : 1.0mm3. usage: sofa

4. port: shunde, guagnzhou,shenzhen

4. mini oder: 10 cartons

5. length: client requirement

6. height; up to client

8. payment;T/T

9. brand: xinli

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