Can the security guard of China Bank change foreign currency for others?

All branches of China Bank can convert foreign currency into RMB, and in China Bank, foreign currency can be converted into RMB.

If you want to exchange cash for money, you must go to the bank counter to exchange it. You need to bring your valid identity documents to the counter to fill out the application for settlement of foreign exchange. If the money is in the card, you can exchange it at the ATM first and then withdraw it directly from the bank counter. Online banking exchange: log in to online banking, select investment and wealth management, click settlement and sale of foreign exchange, and select RMB settlement to withdraw cash from the bank. No matter which bank or foreign currency is converted into RMB, there is no handling fee.