1, foundation engineering, many people think that foundation is not profitable. I want to say that the foundation you came to, the foundation pit piles, earth and stone leveling, is very profitable, and engineers know the rules. There is no need to compete for these projects, because they are almost futile.

2. Exterior wall engineering (glass curtain wall), door and window engineering, decoration engineering and environmental engineering (lighting, equipment and landscape) are almost all profits of 25-30%. Otherwise I wouldn't have done it myself.

3, in addition to the high profits in these professional subcontracting projects, there is another reason because there is almost no fixed unit price, and the cost of materials is too different, that is, the greater the degree of commercialization, the more opportunities.

4. Another important reason is that it is a commercial operation, because it is used to attract foreign investors to invest in Z and make contributions to the local economy.

The business chain of curtain wall companies is usually: design-procurement-deep processing-on-site installation-maintenance, among which the higher barriers include design and deep processing. Generally speaking, the company needs to implement the architectural scheme of curtain wall and turn the simple visual scheme into a producible, manufacturable and installable scheme.

For some landmark buildings, in order to be beautiful and novel, curtain walls are usually designed as curved surfaces or even hyperboloids, which requires high design and manufacturing capabilities of the company. In terms of pricing mode, except for a few landmark buildings with high difficulty in landing, the contract pricing of curtain wall engineering is mainly based on cost plus mode; In terms of settlement and payment, most of the income and profits of curtain wall project are confirmed in the field installation stage, and the performance is predictable, but there are some prepayment problems.