Horry finished ventilation bracket adopts standardized design, which is easy to install and can be quickly adapted to ventilation brackets of different specifications and requirements. The modular design makes the assembly of the bracket more flexible and can be adjusted and optimized according to the actual situation on site. The installation process does not require the use of open flame, such as welding, thus reducing the risk of fire at the construction site, reducing the work at height and complicated construction work, and lowering the safety risk of construction personnel. The finished bracket has excellent corrosion-resistant surface treatment when it leaves the factory, which eliminates the need for post-corrosion treatment and reduces post maintenance work.