ZheJiang Zhengxing Fitness Equipment Company Limited specializes in producing parts and components for fitness equipment. Located in the Hangzhou Economic and Technology Development Zone, it is close to the Xiasha Entrance to Hu-Huang-Yong Expressway in the east and the West-Lake tourist zone in the west, and enjoys easy access to transportation. We produce eight series of invariance style modulation style fluid pressure damper, which are widely used in fitness equipment. Our products boast of advanced technology and innovative configuration, with the features of oil-proof and stable friction value. The compress style luid pressure damper which can spring back automatically, which was developed and patented by our company, has been used in a variety of fitness equipment and created remarkable profits.