Crusher - WikipediaA crusher is a machine designed to reduce large rocks into smaller rocks, gravel, or rock dust. Crushers may be used to reduce the size, or change the form, of waste .. A portable rock crusher from the early 20th century. The entrance bin of a.th century rock crushers in senora,Crusher - RitchieWikiNov 19, 2009 . The crushing of rocks and aggregates has been a progressively demanding industry for at least the last three centuries. Originally, mining.
th century rock crushers in senora