The registration address of the east chang city premium instrument ltd. Is in wanjiang street, dongyang city, guangdong province the registration authority is the market supervisory authority of the city of toung yuen, located in room 301, located in seong wanjiang, and is represented by a legal person and operates on general items: sale of instrument instruments; sale of mechanical equipment; sale of metal products; sale of household appliances; sale of office supplies; sale of labour protection supplies; sale of furniture; import and export of goods; import and export of technology; and repair of instrument instruments. (in addition to projects subject to authorization under the law, the operation of the business is carried out autonomously under a licence)