usiA good way for ng polished compound which is combbined by soliquoid or polishing paste made up of loose abrasive material with fluid or ointment. Using appropriate devices to add sharper or workpiece for polishing. The grinding material is diamond powder, yellow crystal stone micro powder and white jade stone micro powder etc. Different abrasive material must be matched with different material abrasive tools. When using carborundum, you should use grey cast iron abrasive tools, but if you use the diamond abrasive materials, you should use the tinning abrasive tools. Another method is to use cohesion abrasive material that is yellow crystal stone micro power, silicon carbide or white jade micro powder as abrasive and binder. And using sintering and plating or cohering to make abrasive bricks. Fixed the bricks to millstone to make the head of polishing grinding. Commonly use asphalt or sulfur to cohere, the big abrasive brick should be connected with millstone.