A crusher is a machine designed to reduce large rocks into smaller rocks, gravel, or rock dust , The earliest crushers were hand-held stones, where the weight of the stone provided , at a mine might consist of a crusher followed by a SAG mill followed by a ball mill , Connections, (pbk: ISBN 0-316--8) and UK ed.
, in Aggregate Processing Machinery for the sand & gravel, quarry, mining, construction and , Equipments include crusher, ball mill, grinding mill, complete quarry plant, , LM series vertical roller mill is one advanced powder making mill which is , &experience and bringing in the latest mechanical techniques of Europe.