
Beijing Zhongtian Road Tech Co.Ltd focus on the research and development and production of chemical asphalt additives, road maintenance materials.With its headquarters in the capital Beijing, and product production bases in Baoding and Handan, Hebei and Ordos, Inner Mongolia. The company is a member of the board of directors of the China Transportation Association,Traffic Environment Ecological Branch,Transportation Committee of China Technology Market Association, and establishes in-depth cooperation ...