1.Filter is a kind of membrane separate technology which is widely used for separating goods shrink and extract in recent ten years international. It is national 75 science items. 2.Hollow-fiber membrane filter is a kind of semi-membrane which is made of highly molecule Material adopting special technology. It appears hollow thin pipe shape,the wall of the pipe micro hollow,Under the action of the pressure,the original liquid flow in and out of the membrane, the liquid or small molecule,may pass through the membrane,after collecting and become filter liquid,the high molecule goods protein, nucleic acid, alymose and glue particle are prevented in the membrane surface,The original liquid which is circularly flowed will be taken away and become shrink liquid so that the goal of goods separating, shrinking and extracting is reached. Model YF1 YF2 YF3 YF4 YF5 Model of membrane Hollow-fiber made by highly molecule Material adopting special technology The amount molecule being held off 10000-80000(MW) The production of purified water 1T/H 2T/H 3T/H 4T/H 5T/H PH 2-13 Working temperature 5-45degree Working pressure <0.15MPa Working utilizing rate >90% Hollow fiber filter