Affected by the national "Double Control of Energy Consumption" regulation policy and the sharp rise of raw materials, the market situation of coated abrasives is volatile, the price rises sharply, or there is no market, which will have a great impact on the production of our industry.

The coarse grain size should be selected for the workpiece with large machining allowance and high grinding efficiency. When the machining allowance is small and the surface roughness value is low, the fine grain size should be selected. For example, P16-P24 abrasives are used for rust removal of hu

​The ceramic abrasive with sol-gel method belongs to sintered abrasives. The grain size is very small, only 100-500mm. It is only a few million of the crystal size of ordinary corundum abrasives.