Three nines. Zhou Shengsheng pure gold bracelet indicates that this bracelet is pure gold, which means that the pure gold bracelet in Zhou Shengsheng is a pure gold bracelet with a gold content of 99.9%. Zhou Shengsheng Jewelry is a well-known jewelry brand under Zhou Shengsheng Group International Co., Ltd., which provides customers with one-stop professional jewelry service with a modern and fashionable image.