качество металла Lastic винтовая пружина матрац

1. It is suitable for people's body curve and has guaranteed to protect our arthrosis furthest. 2. The spring has no knot and flashback. No damage for the spring. 3. The continuous mattress spring's life is five times than the ordinary mattress. The following information is our present continuous mattress spring specifications. 1. Diameter: 1.8-2.4mm 2. One wire spring net 3. Turn: 4-9 4. Wire thickness range: 1.8mm-2.4mm 5. Height range: 15-20cm 6. Border wire: 4.8-5.0mm. 7. Compressed packing