Next, we will explain this problem in detail. We need to prepare a lot of money to purchase these large road construction machinery products, so we need to make a lot of investment in the early stage. We all know that in modern society, this kind of equipment with scientific technology, powerful performance and complex structure is often expensive, so the one-time investment is huge, accounting for 70% to 80% of the total amount of fixed assets, and the expenditure is relatively large.