A passbook is not a credit card. It is a small paper book and a debit account. It has the functions of saving and withdrawing money, but it does not have the financial functions of a credit card such as overdraft and cash withdrawal.
In addition, most bank passbooks do not support ATM withdrawals, but there are CCB smart teller machines that can use passbooks to withdraw money. However, now banks basically no longer issue passbooks, but bank cards, which are more convenient to use.
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