grinding ball 60mm hardness hrc60 65
High Chrome grinding steel Ball 001 Products Made In China, China Manufacturer. 1 forged balls chemical elements(%): C Si Mn P S Hardness: Dia2560mm HRC6065 Dia80mm100mm HRC5863 Dia110140mm HRC5662 Dia150mm HRC5260 2 High Chrome grinding steel Ball chemical elements(%) : C Si