Instrument and equipment design, production, processing, technology development, technology promotion, technology transfer, technical consulting and technical services; software development; Internet information services; instrumentation, electronic products, communication equipment, electromechanical equipment, medical equipment (Class I and II) , Laboratory equipment and reagents (except dangerous goods), consumables, metal materials sales; equipment maintenance, testing, leasing; self-operated or agent for the import and export business of various commodities and technologies (the state restricts the operation of enterprises or prohibits the import and export of Except commodities and technology); freight forwarders (except express delivery).