Alumina content: 95% 1.high bulk density 3.66g/m3 2. ... .improve stability of raw material 4.size:3-70mm Grinding media ceramic ball : The Products, featured by high hardness, high density, low ... as grinding media of ball mill on ceramics, cements, paints, refractories, inorganic mineral powders industries, etc. Technical date Sheet of abrasive alumina ball: Performance ...