Bank of China credit cards are worth keeping. Bank of China credit cards enjoy an interest-free period of 20-50 days. As long as you repay on time, no interest will be charged. Using a Bank of China credit card can accumulate personal credit, and it will add integrity records to your credit file, which will be very helpful when handling related banking business in the future. In addition, with a Bank of China credit card, you can withdraw money or make purchases with your card at ATMs and POS machines with the UnionPay logo across the country. There are many preferential activities every year.