With the use of advanced technology platform, and combined with our actual production experience, Sanyyo cone crusher manufacturers designed and developed a new generation of compound cone crusher. It is reasonable in structure, big in capacity, reliable in performance, and advantageous in cost-effective. Its advantages is obviously especially when used as secondary or third stage crusher for crushing hard or super hard material in large crushing production line. Types of this kind is complete, and there have models of coarse, medium, fine and extremely-fine for choice. It is widely used for variety of industry. Extremely fine (EF) model in particular can be used for crushing into 5mm and smaller aggregate, which can be used for crushing of the material before grinding in steel mill. No any other similar products can match its technical advantage.