
Technical development, promotion, service, and transfer of water treatment equipment and sewage treatment equipment; Technological development, promotion, service, and transfer of environmental protection technologies; Research and development, production, and sales of water treatment equipment, sewage treatment equipment, and environmental protection equipment; Design, installation, and maintenance of water treatment equipment, sewage treatment equipment, and environmental protection equipment; Construction of landscaping and greening projects; Environmental engineering design and construction; Sales: 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, import and export of goods and technology (excluding goods and technology pro... [
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