Ear muff /noise insulation sponge foam

Trade Name:Ear muff/noise insulation sponge foam/noise reduction foam sponge/foam sponges sound proof/sound insulation spongeMaterial:Polyester and Polyether foamDensity:10-100 ppi Thickness:Could be customized according to customer’s requirements.Width:Could be customized according to customer’s requirements.Color:Could be customized according to customer’s requirements.Function:Good Sound-absorbing and Noise reduction appearance, etc. Industry Standard:GB,BS-5852 or TB117.