China Grinding Media Ball Mill Liner Ceramic Material. about us. GAOTENG was founded in 2000, specialized in grinding media (such asflint pebble, silex lining brick, alumina ball amp alumina lining brick) for ceramic industry, cement, glass, quartz and zirconium silicate industry etc., exported to more than 30 countries and regions around the world, South-east Asia, the Middle-east, Japan ...