As can be seen from the margin system, the first thing you need to meet is the minimum margin requirements such as 5%, 10% and 20%. The minimum trading unit of commodity futures you make is 10T, with 20T in one hand! You also need to make sure
Meet these minimum requirements, and you can speculate in futures.
However, this is a debt-free system under the condition that you don't lose money on your books. If there is a book loss and the amount is insufficient, it will be forced to close the position, so generally speaking, there should be some liquidity on the book to prevent temporary book loss!