Top main mill ball products: 1.Forged mill ball with diameter 20mm-150mm 2.Cast mill ball with diameter 20mm-150mm including special high chrome alloyed casting iron ball, Cr 15% min high chrome alloyed casting iron balls, Cr 11% min low chrome alloyed casting iron balls, Cr 1.5-3.5% Application : As a kind of grinding media used in Ball mill in various mines, cement plants, power stations and chemical industries. Quality guarantee: We' ve established the products quality inspection system including self-testing by workshop , sampling inspection by quality inspection department and fianl quality inspection before shipping. Ceitificate Of Analysis, Ingredient List , Quality-Tracking-Cards are provided. Should any of these items be of interest to you , pls let me know. Formal quotation will be sent upon receipt of detailed requirements.