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High Quanlity Hardness Hrc60 65 Grinding Steel Ball Online Shopping

china hot sale forged steel grinding media ball cast iron,high quality forged steel grinding ballgrinding media for mine. description 1. grade 45,50mn,60mn,65mn,b2,b3,bl,bg 2. diameter 15mm-150mm 3. hardness hrc 55-65 4. breakage rate 1 5. impact value 12jcm2 6. falling ball times 20000s . forgedrolling steel ball classification and chemical composition.grinding rod high resistant to bending and breakage,allstar grinding rod is directly from heated high carbon and chromium alloyed steel bar followed by straightening and in-line heat treatment, tailed to give u niform hardness, high resistance to both abrasion and impact, and resistance to bending.these benefits along the entire length of each rod ensures effective grinding in the rod mills..

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