You can apply to a futures company

The rest in China is Wenhua Finance, and you can buy five quotations.

The quickest way is to make sugar easily.

The strongest comprehensive category is Wenhua Finance, which is relatively fast and Netcom is not bad.

If you want to be in Zhengzhou, use Yisheng. Zhengzhou Stock Exchange is definitely the fastest.

If you want to program trading, use the sharp weapon of the trading pioneer to arbitrage and place orders in batches.

Well, that's all I can do for you.