... wool is used in mechanism, aviation, shipping, train, auto, metallurgy, chemical, industry, textileindustry, seal, dustproof, cushion, quakeproof, heat preservation,heatproof,sound insulation ... ,insulation.Filtration:air,petroleum,water.Polishing:marble,crystal,glass,jadeware,furniture,stainless steel plate.AdvantageThe wool felt products are made from raw wool. wool ...