4,0 mm Flach Zickzack Frühling

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 4.0mm flat zigzag spring is used for the sofa. So it also called sofa spring and coil spring . 1. material: steel 2. diameter; 3.0mm 3. port: shunde, guagnzhou,shenzhen 4. mini oder: 3 tons 5. width; 16-25mm 6. length: client requirement 7. height; 40-55 mm 8. payment;T/T 9. brand: xinli