1.this roller is made by SBR, 2.good wear-resisting, 3.that hulling capacity is 200 ... high hardness, moderate grain force, high roughness, low cardamine.2.Good wear resistance, long using period.3.Strong temperature ... by two rubber rollers.In the end, rice grains come out.Attentions:1.Handle carefully during the transportation.2.Store ... slow roller at a certain time. 10"brown rubber roller for husker