Steel gates are commonly used water control and stoppage equipment in drainage and water conservancy projects, hydropower projects, consisting of door frames, gate plates, sealing rings, and adjustable wedge-shaped pressure blocks. After long-term use and wear, the sealing surface of the steel gate can be adjusted by the wedge-shaped pressure blocks to ensure normal operation. Steel gates are made of steel plates as the base material, with rubber water stoppage and corrosion prevention methods, and are surface treated with sandblasting and hot galvanized coating. They feature reasonable and sturdy structure, strong wear and corrosion resistance, reliable performance, and easy installation, adjustment, use, and maintenance. Durability: The light steel structure is entirely composed of cold-formed thin-walled steel components, with the steel frame manufactured from super corrosion-resistant high-strength cold-rolled galvanized sheets, effectively avoiding the influence of rust on the steel plates during construction and use, thereby extending the service life of the light steel components. The structural lifespan can reach 30 years.