... of oil production, etc.3. This screw oil press utilizes the screw shaft which is set-up ... of pressing worm and pressing ring.4. This oil press machine is composed of feeder, gearbox, pressing cage, ... stand etc.5. This machine is fit to press vegetable oils, not only can squeeze each kind ... oil materials (cold squeeze craft).6. This screw oil press, after more than ten years' investment and modification, ...