The business scope includes general items: Technical service, technical development, technical consultation, technical exchange, technology transfer and technology promotion; Manufacture of diving rescue equipment; Sales of diving rescue equipment; Network technology services; Information technology consulting services; Wholesale of sports goods and equipment; Retail of sports goods and equipment; Lubricant sales; Fire fighting equipment sales; Sales of special electronic equipment; Sales of communication equipment; Wire and cable business; Instrument sales; Sales of machinery and equipment; Wholesale of electronic components; Retail of electronic components; Sales of labor protection articles; Bearing sales; Sales of office supplies; General merchandise sales; Conference and exhibition services; Information consulting services (excluding licensing information consulting services); Enterprise management consulting; Import and export of goods; Technology import and export.