The exterior of Passivhaus Technik-Und Erlebniszentrum in the Sino-German Ecopark in Qingdao, east China's Shandong province. The Shanghai Cooperation Organization summit will be held in Qingdao in June. [Photo/Xinhua] make rubber braceletssolid color silicone wristbandscustom-wristbandssilicone wristbands24-hour-wristbands<%2fcenter>
