I have a classmate who works in Qingyuan science and technology. What company is Qingyuan Technology and what does it do?

I searched online, and Guangzhou Qingyuan Information Technology Co., Ltd. is a high-tech private enterprise. Mainly engaged in embedded software design and development, LED display and control card (supporting server/client, centralized network management, asynchronous display of graphics and text, automatic typesetting of remote information, real-time collection, GIF animation, scheduled program playback) sales, which are widely used in the lintel display screens of banks, telecommunications, postal services, railways and supermarkets in dozens of provinces and cities, and electronic billboards in factories.