Sales of public safety equipment, firefighting equipment, clothing, Wujinjiaodian, building materials, communication equipment, automobile and motorcycle accessories, daily necessities, metal materials, home appliance repair, business consulting, import and export of goods and technology, leasing of self-owned equipment, computer software development, technical consulting, technology development, and technical services in the professional technical fields of imaging equipment and electronic equipment. The following scope is limited to branch operations: production of radiation detectors and luggage and package security detectors. [Projects that require approval according to law can only be carried out with approval from relevant departments]