supply high-low chrome grinding media iron ball with the characterisitics of high hardness, good wear resistance and low breakag Low Chromium Alloyed Cast Grinding Ball Specificationφ20,φ25,φ30,φ40,φ50,φ60,φ70,φ80,φ90,φ100,φ110,φ120,φ127,φ135NameLow Chromium Alloyed Cast Grinding BallPlace of OriginAnshan Dongtai Wear Resistant Material Co., Ltd.Brand NameGUAN WANGSupply Ability50000Ton per ...