London copper refers to three rounds of copper. Represents the average price of the last three months, which can be understood as the middle month, so it has no expiration month, so its graph is always continuous. Therefore, we will only see 3 rounds of copper, without 4, 5 or 6 rounds of copper.

3 Foreign copper refers to OTC trading (equivalent to 24-hour trading). LME3 foreign copper dominates the copper futures market. As long as its trend is analyzed clearly, it will be of great help to the operation of domestic futures copper.

Luntong electric 3 refers to the electronic disk.

Trading hours are in my space. See for yourself.