Recently, Hangzhou Urban Construction Information Center released the information price of some major building materials in Hangzhou in January 2023. The information price shows that in January, the tax information price of yellow sand (rough sand) is 153 yuan/ton, the tax information price of yellow sand (clean sand) is 168 yuan/ton, the tax information price of machine-made sand (comprehensive) is 136 yuan/ton, and the tax information price of gravel (comprehensive) is 128 yuan/ton.
