Sales of plastic packaging containers and tools for food; import and export of goods; manufacturing of instruments and meters; manufacturing of automobile parts and accessories; manufacturing of Internet of Things equipment; manufacturing of electronic components; manufacturing of integrated circuit chips and products; manufacturing of other electronic devices; manufacturing of electronic (gas) physical equipment and other electronic equipment; manufacturing of mobile terminal equipment; intelligent control system integration; electronic components and electromechanical components Equipment manufacturing; Mechanical parts and component processing; Motorcycle spare parts manufacturing; Household appliance manufacturing; Power electronic component manufacturing; Automobile spare parts wholesale; Electronic component wholesale; Intelligent robot sales; Electronic product sales; Power electronic component sales; Electronic components and electromechanical component equipment sales; Electronic component retail; Import and export of state-owned trade management goods; Import and export agency;