... :3-70mm, 20-70 with same price, Alumina pebbles, used in ceramic tile, cement, chemical, mineral 95% :Advantages:The products are ... paints, refractory, inorganic mineral powders and other materials to form. And the detailed information please refers to following:Features: 1. High wear ... it can keep the purity and improve the stability of grinded materials especially the ceramic glaze.2. High density: ...