If you want to buy a fund in Huaxia's electronic direct selling center, you need to log on to the online direct selling homepage of Huaxia Fund:
/etrading/etrading.jsp
You can open it step by step according to the above instructions.
You can also buy it in a bank, for example, open a savings card and a securities card in China Construction Bank, and then open online banking for the savings card to sign up as a contracted customer. Then you can log on to the online bank of CCB and buy any fund you want.