Resultوحدة الحجر محطم محطم. حجر تصنيع وحدات محطم. حجر محطم ماكينات تصنيع. Crusher Wikipedia A crusher is a machine designed to reduce large rocks into smaller rocks, gravel, or rock dust, The earliest crushers were handheld stones, where the weight of the stone provided a boost to muscle power, used against a stone anvil .