Acting for Laofengxiang B sterling silver jewelry. B is the manufacturer code or brand code, and Zuyin is silver with a silver content of not less than 990, that is, pure silver. Lao Fengxiang is a century-old national brand, a famous jewelry brand in China, a listed company and a top 500 enterprise in China. Shanghai Laofengxiang Co., Ltd. evolved from Laofengxiang Jewelry Store and was established in 1848. The originality of its trademark "Lao Fengxiang" also stems from the font size of Lao Fengxiang jewelry store. Laofengxiang Company has developed into a combination of science, industry and trade, with more than 20 subsidiaries including Laofengxiang Jewelry Co., Ltd., Laofengxiang Jewelry Research Institute Co., Ltd. and Laofengxiang Diamond Processing Center Co., Ltd., ranking 87th among the top brands of People's Daily 100 in 20/9.