... 14",20", 28" 3.Brown, White, Amber 4.Cast Iron Drum,Aluminium Details: Chibi Doulbe Lion’s rice rubber roller ... are made of strong and light iron drum or aluminum drum. The rice rubber roller works ... two rubber rollers, in the end, rice grains come out.NBR roller is the 2nd generation of rice huller rubber ... Lion, QiaoWang,Yashi,OEM rubber roll on cast iron drum for rice