Chemical composition: Carbon(C):0.90-1.35%; Manganese(Mn):11. ... 50%;Sulf.. The Shuangling Brand Mnsteel Castings(Jaw plate) are of high wear resistance, good hardness, good tenacity, accurate sizes ... inner quality.Our products include toothed plates(jaw plates) of crushers: 100*600,150*250,150*750,250*1000, ... ,400*600,500*750,600*900;side protection plates of jawcrushers:100*600,150*250,150*750,250*1000, ...