The answer is: Chongqing Chuanyi Automation Equipment Co., Ltd. is not a state-owned enterprise, it is a joint-stock limited company (Sino-foreign joint venture, listed). The company's main projects are: 1, automation control system integration and complete sets of engineering, environmental analysis instruments and complete sets of engineering, instrumentation, electrical automation systems and devices, cable bridges and related products, air purification equipment and accessories design, manufacture, sales and its technical consulting services; 2, the design, manufacture, sales, overhaul and maintenance of valves and its technical consulting services; 3, the design, manufacture, sales and technical consulting services of medical equipment (limited to branches) Sales and technical consulting services (limited to branches with a license); 4, computer and computer network development, application and its technical consulting services; 5, hybrid integrated circuits and microelectronic devices, functional materials and components, automobiles, motorcycle parts (excluding automobile engines, motorcycle engines), general machinery design, manufacture, sales and its technical consulting services; 6, rail transit equipment and Parts and components of the design, manufacture and sales and technical consulting services; 7, rail transit equipment engineering support, system integration, installation and commissioning, operation and maintenance, management and technical consulting services; 8, environmental protection equipment design, manufacturing and sales, system integration, installation and commissioning and its technical consulting services; 9, municipal, environmental protection engineering system sets of design, operation and maintenance, installation and commissioning, management and its technical consulting services; 9, Precious metals, non-ferrous metals and alloys melting, processing, manufacturing and sales and technical consulting services; 11, powder metallurgy products manufacturing, sales; 12, metal waste and scrap processing.