DAGONG-MEGA CERAMIC is Chinese biggest, most professional ball mill manufacturer, also the only one produce ball mill by German Robot, with history more than 50 years. The main advantages are: (1). Full-automatic plasma cutting, guaranteeing 100% accurate dimension. (2). Ultrasonic Crack detection on spindle nose, guaranteeing zero defect. (3). German robot welding technology, guaranteeing no difference production. (4). Electric furnace annealing process, eliminating welding stress. (5). Rectifying of central point and roundness, guaranteeing cylinder rotate stably.