How to inquire about the futures price of grain and oil on that day?
At present, there is no grain and oil futures in China, only fuel oil and soybean oil futures. I think you mean soybean oil?
If you want to see real-time market data, you can find a market software on the website of the futures company, some of which are free. /main/catalog_69 13.aspx can be obtained from this website.