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A typical successful case of Guangzhou guanjin electronic technology co., ltd.

From 2009 to 20 10, the intelligent LED lighting energy-saving control system applied by Zhonglong Transportation won the bid for the World Expo projects-the 8.9-kilometer Shanghai Yangtze River Tunnel Project and the 7.8-kilometer Shandong Qingdao Jiaozhou Bay Submarine Tunnel Project, and also won the bid for the 3.8-kilometer Taihu Avenue expansion and reconstruction project, the Shanxi Wufoshan Tunnel Project, the Guizhou Tunnel Project and the Shanghai Renmin Road Cross-river Tunnel Project.