... among press screw, chamber and the oil materials.3. On the other hand, root diameter of the pressing screw carries larger from ... during manufacturing because of helping protein change property, damage colloid, increase plasticity, decrease oil’s elasticity, resulting in high oil.Technical ParametersDEFY BV ... www.zzdefy.com.cn http://www.zzdefy.cn Professional Manufacturer of Sesame Oil Press Machine