Licensed Projects: Installation, modification and repair of special equipment; Electrical installation services; Construction labor subcontracting( 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.) General Projects: Sales of special equipment for agricultural and sideline food processing; Manufacturing of special equipment for agricultural and sideline food processing; Agricultural machinery services;Agricultural machinery manufacturing; Agricultural machinery sales; Import and export of goods; Technology import and export; Technical Services、 Technology Development、 Technical Consulting、 Technical Exchange、 Technology Transfer、 Technology Promotion; Mechanical parts、 Parts processing; Mechanical parts、 Parts Sales; Mechanical equipment research and development; Manufacturing of special equipment for feed production; Sales of special equipment for feed production; Installation of specialized machinery for agriculture, forestry, animal husbandry, sideline production and fishery、 repair; Agricultural, forestry, animal husbandry and fishery machinery parts manufacturing; Sales of agricultural, forestry, animal husbandry and fishery machinery parts; Agriculture、 Forest、 Mu、 vice、 Sales of specialized fishing machinery; Manufacturing of special instruments for agriculture, forestry, animal husbandry and fishery; Sales of special instruments for agriculture, forestry, animal husbandry and fishery; General mechanical equipment installation services; Mechanical and electrical equipment manufacturing; Mechanical and electrical equipment sales( Except for projects that require approval according to law, Carry out business activities independently in accordance with the law with a business license)