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 str...