Al2O3 Ceramic Grinder for pepper grinder Material:95-97%Al2O3 RHos/FDA wear-resisting performance is good Al2O3 Ceramic Grinder for pepper grinderMaterial:95-97%Al2O3Characteristics:wear-resisting performance is goodThis hexa ceramic grinder used on the coffee/pepper grinder,which has good corrosion resistance, high operating temperature, good mechanical characteristics, high wear resistance, ...