The registration office is the administrative approval board of liang creek district in nishi city, with representatives of legal entities operating on the basis of payment, and includes the sale of metal materials, metal products, general machinery and accessories, electrical machinery and equipment, hardware, household appliances, plastics and rubber products; import and export of self-employed and proxy goods and technologies (except goods and technologies for which the state limits the operation of enterprises or prohibits import and export). (projects subject to legal approval may not operate without the approval of the relevant department)