Mantle,Concave,Jaw Plate are the mainly wear-resistant parts for cone crusher and jaw crusher. Ma'anshan Shi Boda Jing Shen Machinery Co., Ltd is the professional supplier of high-chromium alloy cast iron, high manganese steel, super high manganese steel and other wear resistant Chromium alloy cast iron from 2008.Most of our products are made of Mn13Cr2 ,Mn18Cr2, Mn22Cr2 and are applicable to many Chinese and foreign famous brand