General Projects: Animal Husbandry Machinery Manufacturing; Livestock machinery sales; Mechanical equipment research and development; Special equipment repair; Plastic product manufacturing; Plastic product sales; Manufacturing of special equipment for environmental protection; Sales of special equipment for environmental protection; Machinery and equipment sales; Electronic special equipment manufacturing; Sales of special electronic equipment; Mechanical parts、 Parts processing; Mechanical parts、 Parts Sales; Manufacturing of specialized machinery for agriculture, forestry, animal husbandry, sideline production and fishery; Manufacturing of special instruments for agriculture, forestry, animal husbandry and fishery; Sales of special instruments for agriculture, forestry, animal husbandry and fishery; Agricultural, forestry, animal husbandry and fishery machinery parts manufacturing; Sales of agricultural, forestry, animal husbandry and fishery machinery parts; Lighting fixture manufacturing; Lighting fixture sales; Solar thermal equipment sales; Instrument Manufacturing; Instrument sales; Metal structure manufacturing; Metal structure sales; Manufacturing of special instruments for environmental monitoring; Sales of special instruments for environmental monitoring; Security system monitoring services; Technical Services、 Technology Development、 Technical Consulting、 Technical Exchange、 Technology Transfer、 Technology Promotion; Import and export of goods; Technology import and export( 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: Construction project construction( Projects that require approval according to law, Business activities can only be carried out after approval from relevant departments, The specific business items are subject to the approval documents or licenses.)