... 3.MOQ:30 sqm 4.Soundproof and fireproof Nonwoven acoustic decorative wall panelIt is suitable for:Concert hall, studio, studio, movie ... B1Thermal conductivity less than 0.003w/M.kFeaturesSound absorption,decoration,heat preservation,fireprofing,environmental conservation,easy machining,stability,impact resistance, ... hall,Office,Music college and so on Nonwoven acoustic decorative wall panel