... .65g/cm3 used for polishing metal,stone,car,glass,diamond,gold nonwoven polishing wheelThick: 1-100mm density ... .65g/cm3 used for polishing metal,stone,car,glass,diamond,gold and silvernonwoven polishing wheel Sizeaccording to ... auto,metallurgy,chemical industry,textile industry;Polishing:marble,crystal,glass,jewellery,furniture,stainless steel plateSeal ,dustproof, quakeproof;heat preservation ...