1, XJF is the code of the factory that produces this product. Different batches of products are produced by different factories and must be coded by the factory according to national standards so that the products can be traced back.

2. Pure gold 999 represents the gold content, which is 999‰, which is also required to be marked according to the national standard. Two signs show that this gold jewelry is qualified.

Bank of China Gold Bank is a gold company under the People's Bank of China, so you can buy it with confidence.