معتدل كرات الصلب
ماكينات اللازمة لكسارة الحجر. 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, transporting bulk aggregations that postmine face crushing became widely necessary