... request 3)MOQ:500 kg 4)Usage:felt ring seal Product’s Namefelt ring sealUsageFelted wool is used in ... mechanism, aviation, shipping, train, auto, metallurgy, chemical, industry, textileindustry, seal, dustproof, cushion, quakeproof, heat preservation,heatproof,sound insulation, fire retardant ... ,2 hours from Shanghai.We have begun to produce industrial wool felt and wool felt products from 1968.We ...