It is understood that the Jewelry Merchants Card is a debit card carefully customized by China Minsheng Bank for jewelry entrepreneurs and management elites. In addition to the basic functions of the bank card, it also has ten functions such as free payment and withdrawal of foreign exchange. It is particularly worth mentioning that the cardholder can be automatically granted the pre-credit line of running water loan according to the transaction flow of the card, which can solve the financing problem of small and micro enterprises, effectively improve the efficiency of capital operation and broaden commercial channels.