pocket spring, innerspring, mattress spring, sofa pocket spring, mattress spring, customized pocket springmattress spring, sofa pocket spring Our company produces pocket spring units for use in mattress manufacturing. The ... , 1.9, 2.1Spun-bond polypropylene (gsm): 70, 80 Spring Coil Configuration-Number of Turns: 6.5Height of Springs (mm): 100 ...