... such as micro-mill, attritor-mill, vibratory mill and ball mill to grinding and disperse effectively and economically of ... and etc.Compared with other traditional grinding media such as alumina media, zirconium silicate media, steel media, agate media and ... , minor variegations allowed, no water absorption, Qualified product≥ 5.95≤ 5 No cracking, average roundness, minor variegations allowed, no ...