Polybasic alloyed casting ball:1:high hardness 2:little breakage 3:low wear rate 4:good wear-resistant 5:quality superior Polybasic alloyed casting ball Our products used in many field,such as, cement,power,industry,chemical,mine,station and so on.the new products is high hardness,little breakage,low wear rate,good wear-resistant, our annual production capacity is more than 30,000 metric tons . ...