What are the general contracting modes? What is the specific scope of application? Advantages and disadvantages?

The contracting method can be general contracting or subcontracting.

Subcontracting scope: Subcontractors must complete subcontracted projects by themselves, and no subcontracting is allowed. However, it belongs to the air tightness test, pressure test and debugging of process equipment installation of metal containers, except for special professional and technical operations such as hoisting engineering, piling and advanced decoration.

Subcontractors must complete subcontracted projects by themselves, and may not subcontract. However, it belongs to the air tightness test, pressure test and debugging of process equipment installation of metal containers, except for special professional and technical operations such as hoisting engineering, piling and advanced decoration.

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Project mode represents the mainstream of modern western project management, is the perfect combination of construction project management mode (CM) and design, and is also a model for successfully using this mode to shorten the construction period and reduce investment. It used to be famous for its high-speed and low-cost construction of high-rise buildings and large-scale industrial projects. The key of project general contracting is to rely on qualified professional subcontractors and standardized process control and procedures, so it is widely used in western developed countries. This is the basis of its simple and effective design, manufacture and construction.

Refer to the above content: Baidu Encyclopedia-General Contracting of Engineering