... than 20 years 3.responsible quick buying ball millBall Mill Structure:The machine is composed of feeding part, ... other materials, or to select the mine3) Ball mill is widely used in building material, and chemical industry ... the dry way and the wet way.5) Ball mill can be divided into tabular type and flowing type ... of several hours. 8) The longer the ball mill runs, the finer the powder will be.9) ...