1 Flat foam sponge 2 Density from 6-40 kg/m3, 3 Used: Car, mattress,sofa,bed,chair... Name: SpongeType: Ordinary sponge, ... -70 unitsColor: CustomizedMaterials: Polyurethane, Polyether polyols, etc.Appliance: Car, mattress,sofa,bed,chair,cushion,pack... ONE OF THE MATERIAL... PRODUCTION ... LINE THE FOAM HAVE TO BE COOLED DOWN FINISHED GOODS BLOCK BY BLOCK ...