... , fire retardant,insulation.Filtration:air,petroleum,water.Polishing:marble,crystal,glass,jadeware,furniture,stainless steel plate.AdvantageThe wool ... Shanghai.We have begun to produce industrial wool felt and wool felt products from 1968.We can annually ... according to market demands.Our buyers include Ma’anshan Iron and Steel (Group) Material Company, Australian Electrolux, American Whirlpool ...