High quality Forged Steel Grinding Ball/Grinding Media for Mine DESCRIPTION 1. Grade: 45#,50Mn,60Mn,65Mn,B2,B3,BL,BG 2. Diameter: 15mm-150mm 3. ... View larger video & image. ... Hot Sale Forged Steel Grinding Media Ball Cast Iron Balls Silicon Manganese Balls. US$ 650-680 / Ton. 25 Tons ...Web