Leiyang Chengxin Construction and Installation Co., Ltd. Was established on August 19, 2019. The business scope includes licensed projects: Construction engineering construction; Construction projects (excluding nuclear power plant construction and operation, civil airport construction); Residential interior decoration and renovation; Special equipment installation, renovation, and repair (projects that require approval by law can only be carried out after approval by relevant departments, and specific business projects are subject to approval documents or licenses from relevant departments) General project: Rental of special equipment; Mechanical equipment leasing; Leasing of construction machinery and equipment; Ordinary mechanical equipment installation services (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).