General Projects: Technical services, technical development, technical consulting, technical exchange, technical transfer, and technical promotion; Information technology consulting services; Machinery and equipment R&D; Sale of specialized environmental protection equipment; General machinery and equipment installation services; Repairs of general equipment; Maintenance of electronics and machinery (excluding special equipment); Water pollution control; Air pollution control; Noise and vibration control services; Sale of ecological and environmental materials; Environmental protection monitoring; Environmental protection consulting services; Energy-saving management services; Manufacturing of pumps and vacuum equipment; Sale of pumps and vacuum equipment; Manufacturing of general equipment (excluding special equipment manufacturing); Sale of machinery and equipment; Manufacturing of hardware products; Wholesale of hardware products; Retail of hardware products; Manufacturing of plastic products; Sale of plastic products; Sale of lubricants; Sale of electronic products; Import and export of goods; Technical import and export.