The company of limited liability for the production of eugenic models in hunan province is registered at no. 505 of the golden lake village, on the street at the close of sunyang city. The legal entity is the market supervision authority of sunyang city. The company is represented by li zhen, which operates on the basis of the production of teaching models and teaching aids, general exhibition materials, steel structures and parts of steel structures; installation of hydropower; engineering technical advice; production, sale, research and development of scientific models; modelling services; indoor maintenance; development and development of general exhibition products; design of general exhibition products; software technology services; research and development of software applications; exhibition services; manufacture of laboratory equipment sets, processing, equipment sets and ventilation systems; sale of office supplies, electrical teaching equipment and steel structures; production, sale of electrical products of hardware; distribution of office supplies, architectural and ornamental materials; construction of greening works in the garden; handling services (except for sandstones); advertising services; production of electrical and electronic products; retailing of household appliances, appliances, fittings, maintenance; installation of instrumenting and testing services; and production of electrical equipment. (projects subject to legal approval may not operate without the approval of the relevant department)