... under the high hardness, moderate grain force, high roughness, low cardamine.2.Good wear resistance, long using period.3.Strong temperature ... and non-toxic, no pollution to rice and bran, clean, bright white grain of rice, pure color quality.Usage:Rice hulling rubber roller is the main ... limited.7.Don't make the machine work for a long time,in case effecting the hulling capacity.8.The surrounding ...