(a) the registration address of guangzhou green chart instrument instrument, ltd., is located at 1 1630 cheap street, 2nd street, nanzhou city, and the registration authority is the market supervision authority of the nanzhou district, guangzhou city, represented by a legal person, chen xiaoqin, which operates on the basis of the sale of sanitary supplies and one-time use of medical supplies; category i medical equipment sale; sale of instrumentation instruments; manufacture of instrumentation instruments; repair of instrumentation instruments; supply of instrumentation instruments manufacture; metrology services; import and export of goods; sale of daily department goods; sale of paper products; wholesale distribution of stationery supplies; sale of office equipment consumables; sale of mechanical equipment; sale of hydraulic machinery and components; sale of mechanical parts, parts and components; sale of electrical and mechanical equipment; sale of mechanical and electrical equipment;