... 2)non-toxicecology environmental protection 3)wear-resisting,dustproof,sound-absorbing sound-absorbing felt(1) density:0.09-0.8g/cm3 ... in PP woven bag(8)Company profile:Nangong Dingfeng Felt Co., Ltd. is located in Nangong City,Hebei Province.Our company ... against dust. The products have good function in sealing, sound insulation, thermal insulation, insulation, heat insulation.(9)Contact information ...