... crushing plant can be composed of two-stage plants or three-stage plants. The two-stage plants consists primary crushing plant ... and secondary crushing, while the three-stage plants includes primary crushing plant, secondary crushing plant and ... -75, 100-300,1000-1500 mm 15 2.0 Acceptable Inside Micrometer 0-25, 25-75,100-300, 300-500, 1000-2000 ...