Import and export of goods; Technology import and export (according to law must be approved by the project, the relevant departments can be approved before business activities, specific business projects to the examination and approval results shall prevail) General projects: Daily glass products sales; Lamps and lanterns sales; Lighting sales; Sales of electronic products; Electrical machinery equipment sales; Machinery and equipment sales; Sales of metal products; Sales of rubber products; Daily sundry goods sales; Sales of medical devices of category I; Category II Sales of medical devices; Marketing of sanitary and disposable medical supplies; Retail of medical masks; Sales of special labor protection articles; Retail of protective equipment for medical staff (except for projects subject to approval according to law, independently carry out business activities according to law with business license)