... 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 ... in sealing, sound insulation, thermal insulation, insulation, heat insulation.It is widlely used for machinery ,mechanics & ...