Products Our Products 01. Cerium Oxide Suspension High-purity nano-cerium oxide slurry for polishing silicon wafers, optical glass. 02. Diamond Suspension Permanently suspended Diamond Slurry for grinding and polishing superhard materials. 03. Alumina Suspension High purity alumina slurry for polishing semiconductor materials. 04. Cerium Oxide Polishing Powder Cerium oxide powder with uniform particle size distribution and good suspension is used for polishing optical glass … 05. Polishing Pad Polyurethane grinding pads, used with cerium oxide powder, are mainly used for polishing optical glass.