The simplest thing is that you can see in Wenhua Finance that the latest basis table will be issued after the close of every day and before the opening of every morning. Because I can't send a picture for the time being, I can only express it in words. There is a message in the upper right corner of Wenhua Finance. Click on the message and then click on the 24-hour real-time message, and then find the message entitled "Basic Report of Mandarin Statistics" on the left, and you will see it.
However, it should be noted that the spot price of the above-mentioned non-ferrous metals is the spot price of the Yangtze River non-ferrous metals. If you want to know anything else, you should look it up yourself. But if your own futures company has some arbitrage reports, those arbitrage reports should be more worthy of reference.