Technology import and export; cargo import and export; import and export agency general projects: new material technology research and development; emerging energy technology research and development; resource recycling technology research and development; hardware product research and development; electronic special materials research and development; new material technology promotion services; fireproof sealing material production; rubber product manufacturing; thermal insulation and sound insulation material manufacturing ; Manufacturing of synthetic materials (excluding hazardous chemicals); manufacturing of metal seals; production of chemical products (excluding licensed chemical products); manufacturing of new building materials (excluding hazardous chemicals); manufacturing of sealing fillers; manufacturing of building waterproofing membrane products; production of refractory materials; sales of high-performance sealing materials; manufacturing of plastic products Manufacturing; sales of solar thermal utilization products; sales of solar thermal power generation products; sales of photovoltaic equipment and components; sales of furniture spare parts; sales of rubber products; sales of anti-corrosion materials; sales of sealing fillers; sales of insulation materials; sales of building waterproofing membrane products; sales of daily necessities; sales of metal seals; mechanical equipment Sales; sales of electrical equipment; sales of chemical products (excluding licensed chemical products); retail of hardware products; sales of daily necessities; sales of household appliances; sales of knitted textiles and raw materials; sales of metal materials; sales of new metal functional materials; sales of building materials; sales of new organic active materials; sales of new membrane materials ; Sales of functional glass and new optical materials; sales of high-quality synthetic rubber; sales of engineering plastics and synthetic resins; sales of high-performance fibers and composite materials; sales of green composite materials for rail transit; sales of metal products; sales of assistive bicycles, scooters and spare parts; sales of rail transit engineering machinery and components; wind Sales of power generating units and parts; sales of synthetic materials; sales of metal wire ropes and their products; sales of metal accessories for construction; sales of special electronic equipment; sales of special electronic materials; sales of electronic components and electromechanical component equipment; sales of batteries; sales of power electronic components; sales of springs; sales of semiconductor lighting devices Sales of glass fiber reinforced plastic products; sales of glass fiber and products; sales of special equipment for semiconductor devices; sales of vibration and noise reduction equipment; sales of semiconductor discrete devices; sales of technical glass products; sales of nonferrous metal alloys; sales of special ceramic products; sales of rattan products; sales of enamel products; sales of experimental analysis instruments Sales of refractory materials; sales of metal packaging containers and materials; sales of tea sets; sales of security equipment; sales of magnetic materials; sales of electrical accessories; sales of metal tools; sales of electrical facilities and equipment; retail of arts and crafts and collectibles (except ivory and its products); retail of automobile parts and accessories; retail of motorcycles and spare parts