Water treatment equipment and sewage treatment equipment, technological development, promotion, and environmental protection equipment, sewage treatment equipment, and environmental protection equipment, computer software and hardware and auxiliary equipment, building materials (excluding sand and gravel), decorative materials (excluding hazardous chemicals), class i medical devices, class ii medical devices, electronic products, electrical equipment, hardware and electrical appliances, household appliances.Construction of landscaping and greening projects, environmental engineering design and construction, import and export of goods and technology
