... , aviation, shipping, train, auto, metallurgy, chemical, industry, textileindustry, seal, dustproof, cushion, quakeproof, heat preservation,heatproof,sound insulation, fire retardant,insulation.Filtration ... ,jadeware,furniture,stainless steel plate.AdvantageThe wool felt products are made from raw wool. wool felt performance standards: GB FZ/T25001-92 ...