其中，电路确实有卵石破碎机。x。1 = P. 80.研磨之前粉碎的最后阶段的产物微米。x。2 = 750微米。M. IA =粗矿工作指数和直接设置由SMC测试®用于细颗粒研磨方程1写为：F X F X 3. 2b的IB。4 3 W的M×X]。2（5）其中。x。2 = 750微米。 x 3,Sand Crushing Plant - Cone Crusher Manufacturer from,The sand must be of proper gradation (it should have particles from 150 microns to 4.75 mm in proper proportion) When fine particles are in proper proportion, the sand will have less voids. The cement required will be less when there will be less void in sand. Such sand will be more economical.Crusher - Wikipedia,A crusher is a machine designed to reduce large rocks into smaller rocks, gravel, sand or rock dust.. Crushers may be used to reduce the size, or change the form, of waste materials so they can be more easily disposed of or recycled, or to reduce the size of a solid mix of raw materials (as in rock ore), so that pieces of different composition can be differentiated.