... flexiblility,anti-tearing ,compressive,resistance,seal,insulation,heat preservation,sound insulation; good wear ability and crisscross ... are wools characteristic.By overlapping makes the felt with wool ... ,cushion,quakeproof;heat preservation,heatproof,sound insulation,silencing;fire retardant,insulation. Polishingt:marble,crystal,glass,jedeware,furniture ...