dura-36微晶氧化铝珠由高纯的氧化和氧化铝复合烧结而成，珠子内部的超细微晶结构带来理想的耐磨性和强度，是研磨高纯氧化的无二选择，同时也是代替碳钢球对非矿和金属矿的一个明智选择。

       dura-36 microcrystal alumina bead is made from high purity alumina and silica powder with sintering method. the micro size of polycrystals contributes to wear resistance and idea strength. it is the best choice to grind the high grade alumina powder and a .wise selection to replace the carbon steel beads to grind the metallic and non-metallic mineral.