Where is National Highway 237 1690 km?

National Highway 237 starts in Jining City, Shandong Province and ends in Ningde City, Fujian Province. According to relevant data, National Highway 237 (Jining-Ningde) is an ordinary national highway in People's Republic of China (PRC), which runs north and south, passing through Shandong, Jiangsu, Anhui, Jiangxi and Fujian provinces, and is one of the 47 national highways in China.