North-south instruments ltd. Is registered at zhengzhou, located at zhengzhou, located at zhengzhou, located at zhengzhou, located at zhong shui road, no. 26th floor, no. 72, with the registration authority being the market supervision authority of zhengzhou city, and is represented by legal persons in zhang state, and is operating on general items such as: manufacturing of laboratory analytical instruments; manufacturing of instrument instruments; sale of laboratory analytical instruments; sale of instrument instruments; repair of instrument instruments; sale of equipment; sale of office equipment; sale of office equipment; sale of machinery and equipment; sale of computer hardware and ancillary equipment; sale of chemical products (other than licensed chemical products); sale of electrical appliances; sale of electronics; sale of electrical appliances; sale of refrigeration, air conditioning equipment; sale of generics and distribution devices; sale of furniture; sale of daily supplies; sale of office goods; sale of communications equipment; repair of communications equipment; import and export of goods; maintenance of computers and office equipment; sale of type ii medical equipment; information technology consultancy services; sale of specialized equipment for teaching and teaching equipment; sale of electronic measuring equipment; production for special