31/10/2008 · the grinding process mechanically removes material by breaking off small pieces of glass, the polishing process is both mechanical and chemical. In this stage, the final figure is put into the lens, including its radius of curvature and center thickness. There are a variety of methods and materials available for polishing, the most conventional of
Process Description 3 ... A simplified process flow diagram for a typical cane sugar production plant is shown in ... crushers, or a combination of these processes. For the grinding, or milling, of the crushed cane, multiple sets of threeroller mills are .