In recent years, house prices have been rising, and the prices of building raw materials except steel fluctuate very little. This is largely due to the impact of the financial crisis. Since the second half of this year, the price of cement has soared, from 12 yuan bag in the first half of this year to about 25! This price is obviously inflated, it will come down before the year, and then the government will carry out macro-control. The final price will be around eighteen. There are also substitutes for cement, such as lime and fine sand.