11.19.1 Sand And Gravel Processing
11/95 Sand And Gravel Processing 11.19.1-1 11.19.1 Sand And Gravel Processing ... out large cobbles and boulders. From the hopper, the material is transported to fixed or vibrating ... jaw crushers, roll crushers, and impact mills are used for primary and secondary crushing. After crushing, the size of the material is further reduced to