According to Article 33 of the Regulations on the Administration of Gold and Silver in People's Republic of China (PRC), units dealing in gold and silver must collect and sell gold and silver in strict accordance with the purity and standards of gold and silver stipulated by the state. Gold sold by banks can be made into jewelry as long as it meets the national regulations.

It should be noted that you need to apply to the bank in advance, and the gold bars purchased by the bank can be used to make jewelry.