According to the statistics of Cement Big Data Research Institute, as of September 19, there were no cities where the price of natural sand (medium sand) had changed compared with the previous period; there were no cities where the price of machine-made sand (medium sand) had changed compared with the previous period; there were no cities where the price of gravel (13 stone) had changed compared with the previous period. See the following table for detailed data information. For more data, market analysis and research reports, please visit Cement Big Data (https://data.ccement.com/)...
