Beijing jitien instrument limited is registered on the 4th floor, 6th and 15th floors of plant no. 6 of east fairy bridge, hoang district, beijing city, and is represented by a legal person, tan xinxiang market supervision authority, beijing city, on general projects: manufacture of laboratory analytical instruments; sale of laboratory analytical instruments; sale of instrument instruments; sale of instrument instruments; sale of instruments for the exclusive purpose of environmental monitoring; manufacture of instrument instruments; production of instrumentation for air pollution monitoring and detection instruments; sale of instrumentation for air pollution monitoring and detection; sale of instrument for monitoring and detection of water pollution; sale of instrument for marine water quality and ecological monitoring equipment; sale of lease services (without licensing); sale of specialized chemical products (without dangerous chemicals); air pollution control services; technical services, technical advice, technology exchange, technology transfer, technology promotion; software development; retail trade of computer hardware and auxiliary equipment; repair of instrumentation instruments; maintenance of computer and office equipment; sale of electronics; information technology consulting services; sale of vehicles; sale of emergency environmental technology equipment; export and import of goods; manufacture of specialized instrument. (except for projects subject to legal authorization, operating independently of the law by means of a business licence) (no activity shall be carried out in which the state and municipal industrial policy prohibits and restricts the operation of such projects