1)Material:100% raw wool 2)Color :for buyer's request 3)MOQ:500 kg 4)Usage:felt seal ring Product’s Namewool felt ring for sealingUsageFelted 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. ...