... dustproof, cushion, quakeproof, heat preservation,heatproof,sound insulation, fire retardant,insulation.Filtration:air,petroleum,water.Polishing:marble,crystal,glass ... as: Natural White wool felt, Colored Wool Felt material, felt bags, felt craft,felt christmas products, ... buyers include Ma’anshan Iron and Steel (Group) Material Company, Australian Electrolux, American Whirlpool, German Bosch, ...