Alumina pebbles, used in ceramic tile, cement, chemical, mineral 95%: size:3-70mm, 20-70 with same price, Alumina pebbles, used in ceramic tile, cement, chemical, mineral 95% :Advantages:The products are featured by high hardness, big density, low wear lost, good normalizations, good corrosion-resistance etc. They are the most ideal high-efficient grinding media for milling glaze materials, and ...