1. purity guarantee: the purity of 999.9 pure gold in Mengjinyuan reaches 99.99%, which meets the national standard of pure gold and meets the market demand for high-purity gold. This kind of high-purity gold has a high guarantee in texture, color and value.

2. Certificate and logo: Mengjinyuan Wanchunjin 999.9 products will have corresponding certificates and logos, such as quality guarantee and brand logo. These certificates and logos can be used as evidence of the authenticity of products and increase the trust of consumers.