The registration address of water supply educational devices ltd. Is located at no. 334, second stock of the city of anung yu town, aquaculture, hebei province. The registration authority is the county market supervision authority, with legal representatives chen wei, and its operations include general items: production of special equipment for teaching; sale of equipment for teaching; production of communications equipment; sale of communications equipment; manufacture of lighting equipment; sale of lighting equipment; manufacture of furniture; sale of security equipment; manufacture of security equipment; software development; network technical services; information technology consultancy services; computer systems services; maintenance of computers and office equipment; retail distribution of computer hardware and hardware and assistive equipment; sale of information security equipment; conference and exhibition services; sale of slides and projecting equipment; sale of metal structures; sale of office supplies; production of cultural, office equipment; sports supplies and distribution of equipment; sales of teaching models and teaching aids; retailing of sports supplies and equipment; rental of sports equipment; sale of electronics; retailing of stationery supplies; manufacture of other general-purpose instruments; manufacturing of doors and windows; sale of doors and windows; import and export of goods; import and export of technology (in addition to projects subject to authorization under the law, operating on an autonomous basis under a licence)