high quality 60mm forged grinding steel balls for ball mill
high quality 60mm forged grinding steel balls for ball mill 60mm 80mm 100mm forged grinding steel ball For Ball Mill media 1) In general, forged steel ball has high hardness: surface hardness to 55-68 HRC, volume hardness of 50-63 HRC. 2) Impact toughness high: impact [randpic] 60mm Diam Forged Steel Grind
