General project: Manufacture of metal fittings for construction; Sales of metal fittings for construction; Manufacture of hardware products; Wholesale of hardware products; Retail of hardware products; Furniture spare parts production; Furniture spare parts sales (except for projects that must be approved according to law, independent business activities are carried out according to law with a business license). Licensing items: Import and export of goods; Technology import and export (projects that require approval according to law can only carry out business activities after approval by the relevant departments, and the specific business projects shall be subject to the results of approval).