Duplex filters does not all adopt high-quality SUS304 The rust steel is made, it is that two round cylinders make mp, 0. 4ums of polishing of surface of imside, appeaeance, equipped with the man-ometer, air bleed-ing valve on the top, is suitable for removing the purifocation of dofferentimvisible solid impurity of maked eye in the liquid, such as fresh milk, candyliquid, beverane the filters are used alternativly, canchange ghe filter screen in cace of not shutting down, suitadle for producing in succession for a long time .