Jiean Hi-Tech was established in 2002, focusing on the research and development and technical services of the application of virtual reality technology and system simulation technology in various high-end industries and secondary and higher vocational education. The main business involves rail transit, emergency safety, air transport, sailing and other fields, providing professional solutions and software and hardware products.
2. Giant is a bicycle brand owned by a huge group in mainland China and one of the largest bicycle production and sales companies in the world. According to the above, it can be judged that two nouns are not a brand.