General Projects: Water environment pollution prevention and control services; Natural ecosystem protection and management; Environmental consulting services; Manufacturing of special equipment for environmental protection; Sales of special equipment for environmental protection; Manufacturing of special instruments for environmental monitoring; Sales of special instruments for environmental monitoring; Sales of intelligent power transmission, distribution and control equipment; Special equipment repair; Sales of ecological environment monitoring and testing instruments; Sales of intelligent agricultural machinery and equipment; Manufacturing of specialized machinery for agriculture, forestry, animal husbandry, sideline production and fishery; Distribution switch control equipment manufacturing; Sales of distribution switch control equipment; R&D of distribution switch control equipment; Special equipment manufacturing( Excluding licensed professional equipment manufacturing); General equipment manufacturing( Excluding special equipment manufacturing); electronic、 Mechanical equipment maintenance( Excluding special equipment); Mechanical and electrical equipment manufacturing; Mechanical and electrical equipment sales; Professional cleaning、 Cleaning、 Disinfection services; General equipment repair; Electrical equipment repair; Machinery and equipment sales; Electrical equipment sales; Special equipment sales; Machinery and equipment rental; Mechanical equipment research and development; Special equipment rental; Manufacturing of ecological environment monitoring and testing instruments; Manufacturing of equipment for marine aquaculture and utilization of marine biological resources; Sales of marine aquaculture and marine biological resource utilization equipment; Electronic special equipment manufacturing; Sales of special electronic equipment; Marine engineering equipment manufacturing;Marine engineering equipment sales; Pump and vacuum equipment sales; Marine supporting equipment manufacturing; Direct drinking water equipment sales; Photovoltaic power generation equipment leasing; Pump and vacuum equipment manufacturing; Coal-fired flue gas desulfurization and denitrification equipment manufacturing; Sales of coal-fired flue gas desulfurization and denitrification equipment; Sales of experimental analysis instruments; General mechanical equipment installation services; Experimental analysis instrument manufacturing; Water conservancy related consulting services; Sales of marine water quality and ecological environment monitoring instruments and equipment; gas、 Liquid separation and purification equipment manufacturing; gas、 Liquid separation and purification equipment sales; Planning and design management;Agricultural machinery manufacturing; Agricultural machinery sales; Photovoltaic equipment and components manufacturing; Sales of solar thermal power generation equipment; Fishery machinery manufacturing; Fishing machinery sales; New energy prime mover equipment manufacturing; Power transmission, distribution and control equipment manufacturing; New energy prime mover equipment sales; Sales of photovoltaic equipment and components; Offshore wind power related system research and development; Sales of offshore wind power related equipment; Hardware wholesale; Manufacturing of special equipment for daily chemical industry; Industrial Engineering Design Services; Installation of specialized machinery for agriculture, forestry, animal husbandry, sideline production and fishery、 repair; Agriculture、 Forest、 Mu、 vice、 Sales of specialized fishing machinery; Mining machinery manufacturing; Mining machinery sales; Hardware product manufacturing; Hardware product retail; Hardware product research and development; Marine Environmental Services; Metal product sales; Metal product research and development; Safety、 Manufacturing of metal products for firefighting; Manufacturing of special equipment for electrical machinery; Manufacturing of special machinery and equipment for water resources; Sales of capacitors and their supporting equipment; Electronic components and electromechanical assembly equipment manufacturing; Power transmission, transformation and distribution monitoring and control equipment manufacturing; Sales of electronic components and electromechanical components; Sales of power transmission, transformation and distribution monitoring and control equipment; Atmospheric pollution prevention and control services; Technical Services、 Technology Development、 Technical Consulting、 Technical Exchange、 Technology Transfer、 Technology Promotion; New material technology research and development; fan、 Fan Manufacturing; fan、 Fan Sales。( Except for projects that require approval according to law, Carry out business activities independently in accordance with the law with a business license) Licensed Projects: Special equipment design; Inspection and testing services。( Projects that require approval according to law, Business activities can only be carried out after approval from relevant departments, The specific business projects are subject to the approval documents or licenses of relevant departments.)