SiO2>99.31%,Fe2O3<0.018% Hardness>8 Volume density>=2.66g/cm3 Wear-resisting Useful life: around than 3 years 1. Product InformationName:Silex lining brickOther names: Silex liner brick, ball mill liningProperty: Oblong grayish silex stone blockApplication: With its good hardness and economical price, our silex lining brick can be used as lining brick to grind ceramic materials in ball mill, pot ...