Specifications: 12~ 120mm Chemical composition (%): C: 2.2 - 2.8, Si: 0.5-1.0,Mn: 0.5-0.8, Cr: 4.0-8.0,P: 0.1 max,S: 0.1 max. Medium Chromium Alloyed Cast Grinding BallSpecificationφ12,φ15,φ17,φ20,φ25,φ30,φ40,φ50,φ60,φ70,φ80,φ90,φ100,φ110NameMedium Chromium Alloyed Cast Grinding BallPlace of OriginAnshan Dongtai Wear Resistant Material Co., Ltd.Brand NameGUAN WANGSupply Ability50000Ton per ...