castor oil plant Oil Presser 1.high oil output rate 2.competitive price 3.driven by motor or diesel engine 4.two ... vegetable oil by continuously pressing peanuts, rapeseeds, soybeans,castor oil plant, sesame seeds, benne seeds, palm seeds, sunflower seeds, cotton ... uses high carbon steel, which through high frequency quenching and heat-resisting, it is high hardness and strength, good abrasion ...