... and chemical industries,etc.Such as transformer oil, edible oil, turbine oil, lubricating oil, fuel, grease, saponification, all kinds ... phosphatide from soybeans; purifying ejiao; separating oil and handling sewage,various kinds of medicine, ... centrifugal force compels the material liquid to flow upwards along the inner wall of bowl, ... density is shaped into inner ring, to flow to the top of bowl, to be ...