1. 4",7", 8",10",14",20", 25", 28" inch rice rubber roller 2. Cast ... ,6 inches,7 inches, 8 inches,10 inches,14 inches,20 inches, 25 inches, 28 inchesMaterial: SBR, NBR, POLYColor: ... hulling rubber is the main part of rice huller machine, because of speed difference of veer and reversion ... the wear-resisting performance is good. It makes the machine to reduce the load vibration, and to increase the ...