Zhengzhou lottery Polytron Technologies Inc   

With the rapid development of the economy, advertising is also in the form of a change in turn the world upside down. With the high-precision machine technology continues to improve, the printing of waterproof, anti radiation, strong weatherability, advertising light boxes and quickly occupied the streets crowded places, airport, wharf, bus stop, shopping mall etc.. The rise of advertising will promote the development of machine industry to a certain extent. Currently more popular is a scrolling light box, its working principle is the use of a set of digital scroll system drives the rotating screen interval, so as to install more pictures in a light box effect,.