Coal Sizers, Coal sizers Crusher, Coal Mineral Sizers —Henan .
WEBThe teeth roller are made of wearresistant and impactresistant alloy steel by integral precision casting heat treatment. The hardness HRC of teeth roller is larger or equal to separately 4555 while the impact toughness 45kg·m/cm2. The teeth roller are heated by a solid highfrequency heating device and then installed on the shaft, which ...