Osa is operated by shanghai keys gym development limited, which manages the brand for the gold keys international fitness advisory authority. The golden key, which began in 1999, is china’s early and advanced design agency for the fitness industry! It is a source of trust for professional reasons. At present, physical fitness in austria has spread throughout dozens of provinces and municipalities directly under the central government, including jiangsu, zhejiang, shaanxi, shandong, hebei, henan, shanxi, shimon, sichuan, chongqing, beijing, and the three eastern provinces, with a total membership of almost 450,000 people, and has become one of the most widely marketed and popular sports clubs in the country. The company is a strong advocate of green green and fashion sports, a well-developed management system and professional team based on advanced management concepts, extensive industry experience, and a full range of service facilities such as imported training equipment for ...