... aluminum drum. The rice rubber roller works steadily with high efficiency, low rate of broken rice;Rubber Roller Character:Hardness is 90 ... generation of rice huller rubber roller, is adopted 100% NBR rubber materials, the original color is Amber with innocuity, and its ... times more than SBR roller at least.Aluminium drum rubber roller, with its light weight, high concentricity, the wear-resisting ...