B2 B3 B6 Forged and Hot Rolled Steel Grinding Ball Media for Mining and Cemont Plant. US $ 690.0-850.0 / Ton. 10 Tons (MOQ) 1. Products Information General Information Product Name Forged Grinding Balls HS Code 73261100 Size Range 10-160mm Specification 45#, 50Mn, 60Mn, 65Mn, B2, B3, B4, B6, ...