General Projects: Motor and control system research and development; bearings、 Gear and transmission parts sales; Sales of pneumatic power machinery and components; Technical Services、 Technology Development、 Technical Consulting、 Technical Exchange、 Technology Transfer、 Technology Promotion;Chemical product sales( Does not contain permitted chemical products); Sales of photovoltaic equipment and components; Sales of electronic components and electromechanical components; Office supplies sales; Stationery wholesale; Machinery and equipment sales; Electrical equipment sales; Retail of computer software, hardware and auxiliary equipment; Communications equipment sales; Residential water and electricity installation and maintenance services; Communications equipment repair; Power facility equipment sales; Sales of distribution switch control equipment; R&D of distribution switch control equipment; Engineering and technical research and experimental development; Emerging energy technology research and development; New energy prime mover equipment sales; Agricultural machinery sales; Agriculture、 Forest、 Mu、 vice、 Sales of specialized fishing machinery; Sales of intelligent agricultural machinery and equipment; Manufacturing of specialized machinery for agriculture, forestry, animal husbandry, sideline production and fishery; Installation of specialized machinery for agriculture, forestry, animal husbandry, sideline production and fishery、 repair; Livestock machinery sales; Animal Husbandry Machinery Manufacturing; Sales of agricultural, forestry, animal husbandry and fishery machinery parts; Technology import and export; Import and export of goods。( 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: Electrical installation services; 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.)