Stones are intended for manual grinding or in a special grinder with an abrasive. The stones made of high quality abrasive, with ceramic bonding agent, using a unique process. According to different characteristics, stone General, double-sided, honing and Superfinishing of several types. General stone: the shape of a square, rectangle, triangle, knife-shaped, cylindrical, half round, and so on. For manual grinding a wide variety of tools, moulds and parts. Double-sided stone: rectangular shape. Stone characteristics of two different materials, particle size and hardness, grinding tools, cutting tools and so on. Honing stone: square, rectangular shape. Assembled on all kinds of honing machines for automobiles, tractors, aircraft, air compressor cylinder honing process. Superfinishing stones: shapes such as square, rectangular and shaped. Widely used in ultra-precision machining bearing Raceway, Raceway, crankshaft, camshaft, guide track of machine tools, precision measuring instruments, electronic equipment and other precision parts