General Projects: Manufacturing of special equipment for environmental protection; Sales of special equipment for environmental protection; Auto parts and accessories manufacturing; Auto parts retail; Auto parts wholesale; Manufacturing of special equipment for pulping and papermaking; Sales of pulp and papermaking equipment; food、 liquor、 Manufacturing of special equipment for beverage and tea production; Manufacturing of special equipment for agricultural and sideline food processing; Sales of special equipment for agricultural and sideline food processing; Manufacturing of special packaging equipment; Sales of special packaging equipment; Fishery machinery manufacturing; Fishing machinery sales;Agricultural machinery manufacturing; Agricultural machinery sales; Agricultural, forestry, animal husbandry and fishery machinery parts manufacturing; Sales of agricultural, forestry, animal husbandry and fishery machinery parts; Manufacturing of specialized machinery for agriculture, forestry, animal husbandry, sideline production and fishery; Agriculture、 Forest、 Mu、 vice、 Sales of specialized fishing machinery; Mechanical parts、 Parts processing; Mechanical parts、 Parts Sales; Import and export of goods; Special equipment sales; Installation of specialized machinery for agriculture, forestry, animal husbandry, sideline production and fishery、 repair; Casting machinery manufacturing; Casting machinery sales; Machinery and equipment sales; Special equipment manufacturing( Excluding licensed professional equipment manufacturing); Special equipment repair; Manufacturing of special machinery and equipment for water resources; Business、 diet、 Service-specific equipment manufacturing; Business、 diet、 Service-specific equipment sales; General mechanical equipment installation services; General equipment repair; Mechanical equipment research and development; Technical Services、 Technology Development、 Technical Consulting、 Technical Exchange、 Technology Transfer、 Technology Promotion; Animal Husbandry Machinery Manufacturing; Livestock machinery sales; Plastic product manufacturing; Plastic product sales; Refrigeration、 Air conditioning equipment manufacturing; Refrigeration、 Air conditioning equipment sales; Fermentation process optimization technology research and development。( 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 manufacturing; Installation, modification and repair of special equipment; Construction Engineering Design; 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 projects are subject to the approval documents or licenses of relevant departments.)