How to sharpen the cutters to sharpen the cutters？

Brand “yunli”forging knives are made of high quality specified stainless steel and processedwith strict quenching and tempering technical parameter s-

Brand “Yunli”forging knives are made of high quality specified stainless steel and processedwith strict quenching and tempering technical parameter standard, which highlyimproved knives hardness, durability and combination property. Unique wet-edge sharpeningoperation makes the knives keep lastingly sharp, durable and   easy-grinding characteristics. Enable youenjoy the kitchen time greatly. When the knife blunt, polish it on the sharpenstone with an angle of 15-20 degrees to the knife edge. Then it will becomesharp like new knife. Clean it with water and keep out of reach of childrenafter use. (Warning: Outward the knife edge when rubbing surface with cloth toavoid accidents).