According to Wan Biao. China Gold is the only central enterprise in the domestic gold industry, the president unit of China Gold Association, and the only member unit of World Gold Association in China. The quality of gold is guaranteed, very pure, and there are few solder joints. China jewelry metal is new gold, which is legal and formal for jewelry. The quality of Au99.99 is the best quality stipulated by the state. The purity of gold can reach 999.99, which is safe and reliable.