According to the statistics of Cement Big Data Research Institute, as of January 9, the cities where the price of natural sand (medium sand) has changed compared with the previous period are Chongqing; the cities where the price of machine-made sand (medium sand) has changed compared with the previous period are none; the cities where the price of gravel (13 stone) has changed compared with the previous period are none. 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/)...
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