Steel gates are common water control and stoppage devices in water supply and drainage projects, hydraulic engineering, and hydroelectric projects, composed of door frames,闸板, rubber sealing rings, and adjustable wedge-shaped pressure blocks. Over time, as steel gates wear, their sealing surfaces can be adjusted with the wedge-shaped pressure blocks to ensure continued smooth operation. Steel gates are made with high-quality thick steel plates as the base material, with rubber products for water stoppers and surface treatment methods including sandblasting to remove rust and hot galvanizing to prevent corrosion. They feature reasonable design, durability, strong wear and corrosion resistance, safety, and reliability; easy installation, adjustment, operation, and maintenance. Performance: The lightweight steel structure is made from cold-drawn thin-walled steel components, with the steel frame made from highly corrosion-resistant cold-rolled steel plates galvanized for added effectiveness in preventing rust during construction and use, thereby extending the lifespan of the steel structure components. The structural service life can reach 30 years.