Agricultural irrigation, water saving engineering equipment and accessories, fertilization, irrigation machinery, plastic pipe, purification equipment, pump and the vacuum equipment, generators and generator sets, plastic film, heat insulation, sound insulation materials production, installation, sales and technical advisory services, city pipeline infrastructure construction, information system integration services, engaged in the import and export business, agricultural technology extension service, Warehousing services (excluding hazardous chemicals), biological engineering technology development, consulting, exchange, transfer, extension services, biological science and technology research services, machinery and equipment sales, corn, soybean, potato cultivation, water supply and water supply facilities engineering construction, the governance of lakes and flood control facilities engineering construction, industrial and mining engineering and construction, hydroelectric power project construction, pipeline engineering and construction, Line and equipment engineering construction, engineering management services, energy conservation engineering construction, environmental protection engineering construction, ecological protection engineering construction, landscaping engineering construction, sports site facilities engineering construction, civil engineering construction.