Round Steel Bar B2 D20mm Hot Rolling Steel Ball Surface Hardness 58 - 62hrc Grinding Media for Chemical Industry Quick detail: 1Steel ball size: d20mm 2 Surface hardness: 58-62hrc 3 Core hardness: 55-59hrc 4 ... Read MoreGet Best Price
Grinding Media B3 D120mm Hot Rolling Steel Balls Surface Hardness 58 -59hrc No Broken Power Station Quick detail: 1Steel ball size: d120mm 2 Surface hardness: 60hrc 3 Core hardness: 58-59hrc 4 Good tougness: no ... Read MoreGet Best Price