... heat-insulated, heat-retaining,sound-insulated,quakeproof,seal,moistur Needle-punched felt:Sizewidth1m-8m ,length(according to customers' requests)Thickness1mm- ... productionBy combing ,overlapping,needling ,the felt formed, and by using puncture furniture of needle to achieve thickness to enter ... packing in poly bag,outer packing in PP woven bag (according to customers' requests needle-punched felt