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Profile: Gurnay Machinery Co.,Ltd is a manufacturer of kinds of extrusion equipment, packaging and measuring machine. We also offer melt pump, screen changer, feeding system, particle and liquid packaging quantitative machines. Double piston continuous hydraulic screen changer is an screen changer with double piston and two working stations, can realize continuous production when changing screen. We have variety of screen changer types are available, which can be combined with melt pump to provide the best melt filtration and transportation scheme and can realize integrated design, optimize equipment space and energy consumption to realize non-stop net-changing operation.