... , 5kg/bag Purpose: Glass Polishing Cerium Oxide Polishing Powder also called Cerium Polishing Powder and Rare Earth Polishing Powder, is high performance polishing powder suitable for ... glass, mirrors, glasses, optical glass, lens, and many other field of glass industry:Float Glass Flat Glass Optical Lens Spectacles LCD, TFT Glass Crystals Brown Glass Polishing Powder ...