License Projects: Various construction activities (Operate in accordance with the law as required, subject to approval, specific business operations are subject to the approval results); General Projects: Manufacturing of specialized environmental protection equipment; Wholesale of other chemical products; Wholesale of metal materials; Wholesale of hardware products; Wholesale of labor protection supplies; Technical services, technical development, technical consultation, technical exchange, technology transfer, and technology promotion; Repair of special equipment; Manufacturing of general equipment (excluding the manufacturing of special equipment); Repair of general equipment; Manufacturing of industrial automatic control system equipment; Manufacturing of instruments and meters; Repair of electrical equipment; Manufacturing of mechanical and electrical equipment; Construction of landscaping projects (except for projects that are not subject to the approval, operate independently according to the business license and in accordance with the law)