... fine crushing . 2,This series machines is fit to trength less than 320Mpa stone ,the mix can not over the parameter ... tempering treatment. c,the bearing adopts double-row spherical roller bearings, with fine tuning, endurance, and durability characteristics. d, jaw plates ... ×2300×1700 Jaw Crusher with High Reliability, Low Noise and Less Dust, Easy-to-maintain