... bag. Welcome to Nangong Huari Felt Factory heat resistant industrial wool felt1.100%wool2.any color ... friendly, anti-static, good wearability, dustproof, cushion, quakeproof, Heat preservation, heatproof, sound insulation, silencing, fire retardant, insulation.NameWool ... function in sealing, sound insulation, thermal insulation, insulation, heat insulation.It is widlely used for machinery ,mechanics & ...