Manufacturing of plastic products; R&D of new material technology; R&D of apparel; R&D of bio-based material technology; R&D of fermentation process optimization technology; R&D of mechanical equipment; R&D of motorcycles and parts; R&D of resource recycling technology; R&D of sanitary ware; R&D of industrial enzyme preparations; R&D of special materials for electronics; R&D of emerging energy technology; R&D of biopesticide technology; Industrial engineering design services; R&D of auto parts; R&D of bio-based material polymerization technology; R&D of biochemical product technology; R&D of carbon fiber recycling technology; Technical services, technology development, technical consultation, technical exchange, technology transfer, Technology promotion; research and development of extraction, purification and synthesis technology of marine biological active substances; clothing manufacturing; research and development of metal products; manufacturing of clothing accessories; shoe manufacturing; research and development of kitchenware, sanitary ware and daily sundries; manufacturing of medical packaging materials; manufacturing of glass fiber reinforced plastic products; manufacturing of bio-based materials; engineering plastics Manufacturing of materials and synthetic resins; manufacturing of seals; manufacturing of plastic packaging boxes and containers; manufacturing of paper products; manufacturing of leather products; manufacturing of rubber products; manufacturing of graphite and carbon products; manufacturing of sponge products; manufacturing of glass fiber and products; processing of fur products; special equipment for processing of leather, fur and their products Manufacturing; production of special labor protection products; manufacturing of synthetic materials (excluding hazardous chemicals); manufacturing of automobile decorative products; manufacturing of luggage; production of labor protection products; manufacturing of industrial textile products; plastic surface treatment; clothing manufacturing; research and development of carbon emission reduction, carbon conversion, carbon capture, and carbon storage technologies Development; production of protective equipment for medical staff (Class I medical equipment); sales of first-class medical equipment; wholesale of medical masks; retail of medical masks; wholesale of protective equipment for medical staff; sales of second-class medical equipment; sales of sanitary products and disposable medical supplies; sales of clothing accessories; clothing and apparel Wholesale; retail sales of clothing and apparel; sales of industrial textile products; sales of daily necessities; sales of labor protection products; sales of knitted textiles and raw materials; sales of feathers (down) and products; Internet sales (except for sales of goods requiring licenses); sales of plastic products; import and export of goods; raw and auxiliary materials for shoemaking Sales of materials; sales of leather products; sales of leather; sales of bags; production of daily masks (non-medical); sales of daily masks (non-medical); retail of protective equipment for medical staff; technology import and export; import and export agents; sales agents; retail of sporting goods and equipment; retail of shoes and hats; sales of synthetic materials.