DHS weight lifting equipment manufactured by Shanghai Double Happiness (Group) Inc. has been approved by the International Weightlifting Federation (IWF), confirming them to be Grade A barbells suitable for international competitions. This is the second time that DHS Hercules barbells have been approved by the IWF for use in top international weight lifting competitions since the 1980s.

Located in Jinshan District, Shanghai Double Happiness (Group) Inc. has been proactively dedicated to the development of innovative products, such as the transparent Rainbow Tables used in the finals of the 48th World Table Tennis Championships in Shanghai, and the DHS Yachts used as racing boats by the British Clipper Ventures PLC in the Round the World Yacht Race.Development of such products has not only made the company more influential,but also enhanced the competitiveness of its products in the market.