1. Mengjinyuan, as a brand of gold jewelry, has solderless welding technology, and no solder is used in the welding process of gold jewelry to ensure that the purity of gold jewelry is consistent with the purity of raw materials, which will have more advantages than Yutai jewelry.

2. Yutai Gold and Silver Jewelry Co., Ltd. was restructured from the Gold and Silver Jewelry Building of Jilin Arts and Crafts Company. Jilin Arts and Crafts Company has been engaged in the examination and approval of wholesale gold ornaments and gold used in minority areas since 1964, and it has a history of nearly 40 years.