... 30,φ40,φ50,φ60,φ70,φ80,φ90,φ100,φ110NameMedium Chromium Alloyed Cast Grinding BallPlace of OriginAnshan Dongtai Wear Resistant Material Co., ... yearPackagingBag or steel drumDelivery TimeWithin 30daysUsageThe GUAN WANG Medium Chromium Alloyed Cast Grinding Ball is widely used in cement building materials, metal mining ... to the customer`s demand. High-medium-low chromium cast grinding steel ball