Our company "Zhangqiu Ruinian Casting and Forging Co., Ltd. "is a professional company in producting grinding media, including forged steel ball, grinding steel ball, casting iron balls in China. Grinding steel balls are mainly applied in mines, power station, cement plants and chemical fields. The steel balls made by us are of high hardness, even wearing, good wearing resistance, no breakage, which can really reduce the cost of customers. The sizes are available from DIA20-150MM, annual production capacity 20000tons. Which are strictly manufactured as standard YB/T091-2005 grinding ball, which are exported to Japan, Korea, Australia and other countries and regions and obtained high reputation from them. Please visit our web to get more about us.