pocket spring for sofa

spring for sofafeature Below are the specifications that we reference . size(cm) H(cm) row count coils wire diameter (mm) turns 40*45 8-10 6*7 42 1.8 4 40*45 11-13 6*7 42 1.8 4 45*50 14-15 7*8 56 1.8 4 45*50 16-17 7*8 56 1.8 4 40*45 8-10 6*7 42 2 4 45*50 11-13 7*8 56 2 4 45*80 14-15 7*12 84 2 4 45*80 16-17 7*12 84 2 4 Wire diameter :0.9-2.4mm Height : 6-26cm Turns : 4-6 turns Head diameter: 3.5-5.8 cm Waist diameter : 3.8-7.5 cm Fabric : Non-woven Fabric :60-75-100g/m2 Border : 3.0-5.0-6.0 mm Packing : rolled & flat compressed package material: 70#steel 1)Size: More spec. can beagainst clients' requirements. 2)Advantage: Each coil is made from quality high carbon steel wire , providing great surface flexibility , distributing lasting elasticity .Selecting quality high strength non woven fabric or fantastic AP fabric , maximize the low-friction effect , extend the life of spring coils .Covering non woven fabric on the bottom and top of the spring layer , prevent other filling mattress from sinking into the coils .Pockets are machine-assembled in rows held firmly together by hot melt thermal bonding .