... , small occupation, durable Technical Parameters of small cold oil press machinery: Model Number1685, 1688, 120, 150Screw Diameter78mm ... a formal contractOil Hydraulic Press and small cold oil press machinery: Centrifugal refining machineRefining machine functionsFiltration equipmentOil ... direct filling sales.2. The filtered oil is still crude oil, pot overflow pan up foam, not direct consumption. ...