A new railway line for transporting coals was put into operation in China on Saturday. The 216.8 km-long railway links Huanghua South Station of Huanghua City in north China's Hebei Province and Dajiawa Station in Yangkou, east China's Shandong Province. It is designed to transport cargo weighing 31.97 million tonnes. In the future, its transporting capacity is expected to reach 47.52 million tonnes.