... small occupation, durable Technical Parameters of small cold oil press machinery: Model Number1685, 1688, 120, 150Screw Diameter78mm, 95mm, ... contractOil Hydraulic Press and small cold oil press machinery: Centrifugal refining machineRefining machine functionsFiltration equipmentOil filter functionality1 ... not overflow the pot, not foam, can direct filling sales.2. The filtered oil is still crude ...