Shenzhen CTVHD technology Co., LTD. Company devotes to research and development, production, sales and service of the video, teaching touch equipment product, production, the products cover: all series of infrared touch screen and CCD optical touch screen, 18.5 ~ 108 inch all-in-one PC TV and interactive electronic whiteboard, 15 inch ~ 82 inch LCD and plasma advertising machine (a single version and advertising machine, wall hung, online console, vertical type screen, horizontal type screen or ...