Self-employed people sell their rings as handicrafts. Handicraft refers to handicrafts, that is, products with artistic value made from raw materials or semi-finished products by hand or machine, generally including wood, teeth, bamboo, carbon, jade carving, Mahan glass, color carving, resin, Wan Wen walnut, ceramics, paper cutting and so on. Handicraft production, handicraft distribution, handicraft production training, exchange and sales of gold and silver products; Jewelry retail; Handicrafts and collectibles retail. Owners of individual industrial and commercial households need to apply for a formal business license to sell artworks, that is, the boss himself carries his ID card and residence permit to the local (AIC) administrative department for industry and commerce to apply for a business license to sell artworks, and also to the local public security organ to apply for a business license for special industries.