9 to 9.5 fold. Inquiring in official website, Zhou Shengsheng, we know that senior members have a 9-9.5 discount. Sheng Group International Co., Ltd. is a famous gold and jewelry enterprise in Chinese mainland, Hongkong, China, Macau, China and Taiwan Province, China. Zhou Shengsheng originated from a company of the same name in Guangzhou, China, 1934. The name of the family founder means "endless life", which not only contains his surname, but also expresses his blessing to the enterprise.