08 12 is the delivery time of the contract. For example, CU08 12 is a copper futures contract delivered in February 2008, and the final price is 65438+February, 15, 16-20 is the delivery time, which will be postponed in case of legal holidays.

Many of them are displayed because of different delivery times. In fact, you only need to look at the main contract. The main contract is the futures contract with the largest position and turnover. You can generally look at the first two positions.