Manufacture of road motor vehicles; manufacture of special equipment. General items: sales of automobiles; import and export of goods; import and export of technology; manufacture of metal chains and other metal products; sales of metal chains and other metal products; manufacture of automotive parts and accessories; retail of automotive parts; processing of mechanical parts and components; sales of mechanical parts and components; sales of chemical products (excluding licensed hazardous chemicals); sales of specialty chemical products (excluding hazardous chemicals); sales of building materials; sales of metal tools; sales of rubber products; leasing of special equipment; leasing of machinery and equipment; leasing services (excluding licensed leasing services); vehicle towing, rescue, and obstacle removal services; repair and maintenance of motor vehicles; graphic design; advertising publication; advertising design and agency; advertising production; conference and exhibition services; daily living services for residents; technical services, technical development, technical consulting, technical exchange, technology transfer, and technology promotion.