During the Spring and Autumn Period, what was the development of handicraft business in China?

1. During the Spring and Autumn Period, with the use of ironware and Niu Geng, productivity began to develop rapidly, and the development of agriculture was followed by a large demand for production tools, and handicrafts and commerce also began to sprout and develop rapidly.

2. Handicraft industry: The appearance of ironware has provided a sharp weapon for the development of handicraft industry, and the manufacturing of various farm tools serving agriculture has developed rapidly, as well as the supporting smelting and casting industry, textile industry, cooking and salt industry and wine-making industry.

3. Commerce: With the increase of demand, the traditional self-sufficient handicraft industry can no longer meet the production needs of farmers. Some craftsmen abandoned the land and turned to individual producers and operators, living in the "four shops" in the city, selling while producing, and the business sprouted and developed rapidly.

4. The development of handicrafts and commerce in the Spring and Autumn Period further accelerated the development of agriculture and the formation of a new social class dominated by craftsmen and businessmen.