Sakaoyang city south science and technology exhibition model ltd., with registered address at 18 hersing road on the street of sakaoyang city, with registration as the market supervision authority of sakayang city, with legal representatives zhang suwen, operating on the basis of the production of teaching models and teaching aids, teaching equipment, handicrafts; multimedia, model design services; sale of construction and decoration materials; digital animation; research and development of teaching equipment; advertising services; development of integrated software for exhibition services