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Zhengzhou constant light promise: as long as you buy enough supplies 2,800 yuan, constant light on the LED display for you to provide free technical training and related technical information. Training included: indoor and outdoor monochrome, dual-color, full color led display technology and wireless GSM / GPRS vehicle led electronic display technology. Constant light for the majority of students with the highest cost of materials and the most attentive service.
LED electronic screen technology
