... , there is quite strong friction among press screw, chamber and the oil materials. 3.On the other hand, root ... oil’s elasticity, resulting in high oil. Cold And Hot Amphibious Screw Press Machine/ Oil ExpellerMain technical parameters: Model6YL-1006YL-1206YL- ... to oil material that is refined, separated, flaked, steamed and fired, and the auxiliary equipments are complete with reasonable techniques.