1. Alumina ceramic ring slice Large hardness Alumina ceramic ring slice Measured by professional research institutes, its Loss hardness is HRA80-90, second only to diamond, and Alumina ceramic ring slice wear resistance far exceeds wear-resistant steel and stainless steel. 2. Alumina ceramic ring slice good wear resistance Alumina ceramic ring slice its wear resistance is equivalent to 266 times that of manganese steel and 171.5 times that of high-chromium cast iron. 3. Lightweight Its density is 3.5g/cm3, which is only half of steel, which can greatly reduce the equipment load.