(e) production and construction of generators; construction and construction of plants; construction and construction of plants; construction and construction of plants and equipment; supply and distribution of equipment and equipment; supply and distribution of equipment; supply and distribution of equipment and equipment; technical and technological exchange, technology transfer and extension of technology; technical and information technology services; technical advisory services and information technology development services; and information technology development and information technology services; licensing projects: subcontracting of construction services; construction works; operation services for municipal waste; quality inspection of construction works; testing and testing services; surveying services; construction professional operations; design of building intelligence systems; hazardous waste operation; dredging of rivers; professional intermediation activities (projects subject to legal approval, subject to the approval of the relevant department, which are subject to approval)。