1.SBR - NBR Rice Rubber Roller. 2.4",6",7", ... Alkali, Salt, oil, and dirty, forbidden to put under sun for long time.Take sands away from the paddy; keep paddy ... rate of the re-hulling under the limitedDon’t make the machine work for a long time, in case effect the hulling ... 1.0223±1.0225±1.0255±1.0270±1.0227±1.0258±1.0258±1.0258±1.0 Length(mm)100±1.0152±1.0200±1.0254±1.0300±1.0355±1.0508±1.0635±1.0708±1 ...