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high chrome diameter 125mm grinding steel ball for ball mill

China Grinding Ball supplier Mill Ball Steel Ball Manufacturers Suppliers Changshu Feifan Metalwork Co Ltd Diameter 25mm to 125mm 2Hardness High homogeneous hardness from 5565 3Fracture toughness No less than 12Jcm2 Dia 17mm130mm High Chrome Grinding Media CastingCasted Steel Ball for Ball Mill