A) Products: High & low chrome cast grinding balls B) Diameter: 8- 130mm C) Hardness: High chr cast grinding balls: HRC 58-65 Low chr cast grinding balls: HRC>=45 D) Characteristics: 1) High hardness and resistance 2) Good even wear 3) No breaking E) Applied fields: 1) Metal Mining 2) Cement plants 3) Power stations 4) Chemical industry