No. Shi Sheng Yumantang is a legal enterprise that has passed the official evaluation. It holds a formal business certificate, and the jewelry it sells has been strictly examined. It holds relevant certificates, and the sales are true, and there are no fakes. Nanjing Yumantang Jewelry Co., Ltd., established in 2003, is located in Nanjing, Jiangsu Province. Is a retail business-oriented enterprise, the business scope of jewelry, jade carving, handicrafts, marble processing and sales.