1)The wool felt products are made from Australian raw wool. 2)wool felt has passed the ISO 9001 certification. Product’s NameWool feltUsageFelted wool is used in mechanism, aviation, shipping, train, auto, metallurgy, chemical, industry, textileindustry, seal, dustproof, cushion, quakeproof, heat preservation,heatproof,sound insulation, fire retardant,insulation.Filtration:air,petroleum,water. ...