General business items are: Sales of digital products, Mobile phone accessories and accessories, communication equipment, electronic toys, computer hardware and peripheral accessories, network equipment, instruments and meters, smart home products, household appliances, commercial display peripheral products, lamps, household products, office and household products, metal products, plastic products, display shelves (cabinets), color boxes, cartons, cleaning supplies, masks; Technical development and sales of Class II medical devices; Domestic trade, import and export of goods and technology (Except for projects prohibited by laws, administrative regulations, and decisions of the State Council, restricted projects must obtain permission before they can be operated)