... force can be saved for equal output. Ony one or two persons are needed for the production, which can save about ... 20 kinds of oil crops can be pressed by this machine, such as, peanuts, sesame, vegetable seeds, soybean, sunflower, cottonseeds, flax ... . Vacuum filterOperatinal Process:1. Prepare raw materials.2. Adjust the machine, for example, checking electricity, beginning heating (if it is cold ...