https://www.polishingslurry.com/products/alumina-polishing-powder-0.6-microns/
Nano alumina powder polishing provides quality polished surfaces with a high removal rate, can be used for the final polishing of a lot kinds of materials. Nano-alumina powder has good chemical stability and adsorption ability, and can be good suspended in aqueous solution to prepare nano-alumina slurry. The suspension is used for CMP polishing, enabling the workpiece to obtain a good surface of a variety of materials.