... . 3.Attractive price. 4.SGS test provied. wearable steel casting ball 1.delivery on time 2.high hardness 3.lower breakage ... .good wear resistance We, Jinan Zhongwei casting and forging grinding ball Co., Ltd, established in 2000, is a leading manufacturer and ... is provided with superior location and convenient transportation.Casting steel ball Specification: 1.Chemical composition: C(0.6-1.2) Cr ...