I am using the credit cards of China Merchants Bank, China Construction Bank and Industrial and Commercial Bank. It is easier for Bank of Communications and China Merchants Bank to apply for credit cards, but it is inconvenient for automatic repayment machines to repay. One advantage is that the credit lines of China Merchants Bank and Communications are relatively large, and they are rising rapidly! In contrast, the credit card applications of China Construction Bank and Industrial and Commercial Bank of China are not as good as those of Italy, and the amount is relatively small and the increase is relatively slow. The only thing is that there are many outlets and repayment is easy. Personally, I think it is better to use transportation, and the quantity is large. Repay on the 4th of every month. Of course, it doesn't matter if you are a taxi driver, and other credit cards are big, and people's livelihood, Shanghai Pudong Development Bank and Shenzhen Development Bank all feel bad! See for yourself according to your own situation.