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        Graphical Waterfall-Digital Water Curtain
        The digital water system is high-frequency opening and closing by solenoid valve, and water droplets fall continuously or discontinuously, forming all sorts of images. Our standard curtain has got 56 valves and 112 nozzles every meter. Digital water curtain could display words, figures or images and different running effects. The control system could convert the customized images into different control signals to the solenoid valves, then form different words or patterns designed. So it is also called as waterfall printer.