Special equipment design; Special equipment manufacturing; Special equipment installation, modification and repair; Electrical installation services; Special equipment inspection and testing; Class II medical device production; Construction engineering construction; Civil aircraft parts design and production; Wire and cable manufacturing; Road motor vehicle production. General items: Special equipment sales; Gas, liquid separation and purification equipment manufacturing; Gas, liquid separation and purification equipment sales; Special equipment manufacturing (excluding licensed special equipment manufacturing); Special equipment repair; Motor and its control system research and development; Material handling equipment manufacturing; Material handling equipment sales; Plastic packaging boxes and containers manufacturing; Chemical product sales (excluding licensed chemical products); Metal products research and development; Metal products sales; Metal products repair; Container manufacturing; Container sales; Metal packaging containers and materials manufacturing; Metal packaging containers and materials sales; Pump and vacuum equipment manufacturing; Pump and vacuum equipment sales; Security equipment sales; Security technical prevention system design and construction services; Motor vehicle repair and maintenance; New car sales; New energy vehicle complete vehicle sales; Class II medical device sales; Mechanical and electrical equipment manufacturing; Mechanical and electrical equipment sales; Software development; Software sales; Industrial control computer and system manufacturing; Industrial control computer and system sales; Battery manufacturing; Battery sales; Refrigeration and air conditioning equipment manufacturing; Refrigeration and air conditioning equipment sales; Mechanical equipment leasing; Technical services, technology development, technical consultation, technical exchange, technology transfer, technology promotion; Labor services (excluding labor dispatch); Non-residential real estate leasing; Metal material sales; Power distribution switchgear equipment research and development; Power distribution switchgear equipment manufacturing; Power distribution switchgear equipment sales; Building decoration, water heating pipeline parts and other building metal products manufacturing; Computer software and hardware and auxiliary equipment wholesale; Transformer, rectifier and inductor manufacturing; Wire and cable operation; Industrial automatic control system device sales; Information system integration services; Information technology consulting services; Information system operation and maintenance services; Special operations personnel safety technical training; General valve and cock manufacturing (excluding special equipment manufacturing); Container repair; New membrane material sales; Daily-use chemical product sales; Intelligent material handling equipment sales; Mechanical parts, components processing; Mechanical parts, components sales; Metrology technical services; Marine supporting equipment manufacturing; General mechanical equipment installation services.