... , 2:production efficiency, 3:Less spare part consumin limestone rock fine cone crusher I. Application of Mengfan spring Cone crusher.1 ... . material: hard and mid-hard rocks and ores, such as iron ores, copper ores, limestone, quartz, granite, gritstone, etc.2. Application ... type PYZ is for medium and fine crushing3. The short-head type PYD is for fine crushing. III. Structure of Mengfan spring ...