Jinan Zhengxin Machinery Equipment Co., Ltd. is registered at No. 458, 3rd Floor, Office Building, No. 419 Jingsi Road, Shizhong District, Jinan City, Shandong Province. The registration authority is the Market Supervision Administration of Shizhong District, Jinan City, and the legal representative is Zhang Xueling. The business scope includes general projects such as mechanical equipment leasing; Installation services for ordinary mechanical equipment; Sales of mechanical equipment; Construction of landscaping and greening projects; Sales of metal structures; General equipment repair; Sales of electrical equipment; Sales of mechanical and electrical equipment; Sales of mining machinery; Sales of mechanical parts and components; Sales of plastic products; Sales of glass fiber reinforced plastic products; Retail of hardware products; Sales of distribution switch control equipment; Electrical equipment repair; Sales of industrial automatic control system devices; Sales of specialized equipment for environmental protection; Sales of labor protection equipment; Sales of doors and windows; Wholesale of hardware products; Sales of electrical accessories; Sales of chemical products (excluding licensed chemical products); Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Sales of security equipment; Sales of gas and liquid separation and purification equipment; Sales of agricultural machinery; Sales of electronic specialized equipment; Sales of metal products; Sales of metal chains and other metal products; Sales of generators and generator sets; Sales of household appliances; Sales of special equipment; Sales of metal materials; Sales of power electronic components; Sales of refrigeration and air conditioning equipment; Sales of metal cutting and welding equipment; Sales of gas compression machinery; Leasing of construction machinery and equipment; Sales of wind turbines and their components; Municipal facility management; Engineering management services; Engineering and technical services (excluding planning management, survey, design, and supervision); Construction of earthwork engineering; Sales of specialized machinery for agriculture, forestry, animal husbandry, animal husbandry, and fisheries; Sales of construction machinery; Sales of building materials; Sales of lightweight building materials; Sales of metal fittings for construction. (Except for projects that require approval according to law, business activities can be carried out independently based on the business license in accordance with the law) Licensed project: construction project construction; Import and export of goods; Import and export agency. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments. The specific business projects shall be subject to the approval documents or licenses issued by the relevant departments.)