... appears hollow thin pipe shape, the wall of the pipe micro hollow, Under the action of the pressure, the original liquid flow in and ... will be taken away and become shrink liquid so that the goal of goods separating, shrinking and extracting is reached.YF type ... colloid atom and big molecule organic substance as goal separating course. The specification of the product:ModelYF-1Yf-2Yf-3Yf-4YF-5Model of ...