The registration address of hebei puan science and technology ltd. Is located in singhua city, no. 89, north two ring west road, xinhua, hebei province. The registration authority is the market supervision authority of xinhua district, with legal representatives, and operates on general items: technical services, technology development, technical advice, technology exchange, technology transfer, technology diffusion; mechanical equipment development; maintenance of electronics, mechanical equipment (without special equipment); installation services for general mechanical equipment; repair of general equipment; repair of instrument meters; sale of security equipment; sale of mechanical equipment; sale of specialized equipment for environmental protection; sale of fire-fighting equipment; sale of electronic products; wholesale distribution of hardware products; retail sale of hardware products; sale of special instrument forms for environmental monitoring; sale of labour protection supplies; wholesale distribution of electronic appliances; retail distribution of electronic devices; and electrical and cable operations. (in addition to projects subject to authorization under the law, the operation of the business is carried out autonomously under a licence)