Design, production, processing, and retail: automotive parts and accessories (excluding engines); modified automobile manufacturing; processing and sales: automobiles; sales: general mechanical equipment, mechanical parts, medical devices (including Class III medical devices); design: automotive repair tools; installation of automotive fixed pressure vessels; medical device repair; contracting: monitoring system engineering, electronic equipment engineering, computer network engineering, radar navigation and measurement and control system engineering; design and production: integrated circuits; computer technology development, technical services; software development; sound insulation engineering services; information system integration services; information technology consulting services; commodity information consulting services; scientific and technological information consulting services; engineering technical consulting services; import and export of goods or technology (excluding goods and technology prohibited or subject to administrative approval by the state).