What was the development of handicraft business in China during the Spring and Autumn Period?

Handicraft industry: smelting and casting industry, textile industry, edible salt industry and brewing industry have developed one after another.

Commerce: During the Spring and Autumn Period, some craftsmen became individual producers and operators, living in the "four" cities, producing and selling.

After the mid-Spring and Autumn Period, the vassal states have used a lot of money. The circulation of metal currency promoted the development of handicraft industry and commerce. During the Spring and Autumn Period, iron farm tools were used. The use of iron makes it possible to reclaim wasteland on a large scale, which promotes the development of private fields and provides sharp tools for handicrafts.

During the Spring and Autumn Period, with the development of productive forces and the struggle within and between countries, the pattern of "workers eating officials" was broken. During the Warring States period, independent small handicraftsmen appeared widely as a social stratum. With the emergence of this situation, the social division of labor has further expanded, and the exchange of products between farmers and craftsmen has become more common and frequent.