... 2 main materials:rapeseeds,soybean,cotten seeds oil prepress equipment in alibaba:1 capacity:50-2000T/D2 main materials:rapeseeds, ... and low failure ratio,etc.and is the ideal equipment for large and medium oil factories. Zhengzhou Penguin Oiling ... over China,Zhengzhou Qie Cooking Oil MachineryCo., Ltd specializes in manufactureof cooking oil machinery. With strongtechnical base, the company ...