First of all, the purchase and sale of goods in China is composed of "Internet plus circulation+finance". Commodity purchase and sale is the electronic online transaction of commodities (such as tea, porcelain, red wine and other commodities with use value and collection value) issued by the competent department of the state. No leverage, no threshold. It is based on the physical objects kept, and can be traded online or extracted from the spot. Like stocks, futures and foreign exchange, the funds are supervised by the third party of the bank, and the access funds are controlled by the customers themselves, with zero risk. For details, please pay attention to the "commodity purchase and sale" post bar.