Specifications: 1 soft soundproofing material 2 Sound absorption coefficient:0.96 3 Material"pp 4 Thichness:10-80mm 5 Eco-friendly soft soundproofing material used in car Product name Soundproofing and absorbing material(SMS) Sound absorption coefficient 0.96 Material Main fiber: PP Tech Melt blown Specification Weight: 100-600gsm Width: 1.5-2.3m Thickness: 25mm, 50mm Features Soft, flame retardant, sound insulation, heat insulation and harmless to body Application Car, KTV, theater, concerts such noisy p;aces Product ability 450tons per month Packing Roll with PE bag inside and knitted bag outside Payment terms L/C, T/T, and West Union Introduction: 1 Materials are polypropylene fibers . 2 not containing any carcinogenic substances, and will not produce dust and other debris during operating. Features: 1 Fiber fineness of material is 0.5-1.0μm. 2 Greater surface area and higher porosity(≥75%). 3 Can absorb sound waves and prevent sound waves from spreading to other spaces by other medium Nonwoven soft soundproofing material used in car