Assembly and sales of high-voltage packages, chargers, capacitors, flashers, rectifiers, relays, and remote controls; processing and sales of motorcycle igniters, small gasoline generators and accessories, water pumps, metal stamping parts, injection molded parts, ozone air sterilizers (operated with a valid license), and air purifiers; self-operated or agency import and export business of various commodities and technologies (except for commodities and technologies that are restricted by the state or prohibited from import and export).