... .2.Prepressing Equipments include: oil prepressing equipements, Steam and frying machine.This step is press the raw material ... : rice bran pretreatment&expansion workshop, oil extraction workshop and oil refining workshop.1.Craft flow for expansion workshopCrude ... . Raw materials : soybean, peanut, rapeseed, cottonseed, sunflower seeds, palm nuts, linseed, tea seed, corn embryo, rice bran, oil seeds ...