As you can see from your question, the public knows too little about RMB futures now. Although it has reached the daily limit of 12, the transaction volume is really small, mainly because there are not many people involved.
This is also related to the fact that there is no market software and simulation software at present, and only the firm software can see the trend chart.
As for the bank you said, it is not RMB futures, but another financial management model.
Trading is the same as futures. One hand can make 8K blocks, as short as you want.
Completely formal, don't worry, just make sure it's real RMB futures.
Why don't you trust me personally? I happen to have some information to send to you.