The registration address of the city mechanical plant of mayor zheng yi is located at no. 8 of the central aluminium port industrial park, located in the zhou yi town station of the city of zhengzhou, henan province. The registration authority is the market supervision authority of the city of zheng yi, represented by a legal person, li dong xue, and includes the production and sale of steel mills, mine machinery, building materials machinery, grain oil machinery, packaging machinery, and the import and export of goods and technology (except goods and technology for which approval is required by national laws and regulations to operate or prohibit import and export)。