钢制闸门耐久性：轻钢结构全部采用冷弯薄壁钢构件体系组成，钢骨采用超级防腐高强冷轧镀锌板制造，有效避免钢板在施工和使用过程中的锈蚀的影响，增加了轻钢构件的使用寿命。结构寿命可达30年。钢制闸门是水工构筑物主要组成部分，用以开启或关闭放水孔口，起着控制水位调节流量，改变流量等作用。
Durability of steel gates: All light steel structures are composed of cold-formed thin-walled steel members. Steel frames are made of super-anticorrosive and high strength cold-rolled galvanized sheets, which can effectively avoid the effect of corrosion of steel plates during construction and use, and increase the service life of light steel components. The service life of the structure can reach 30 years. Steel gates are the main components of hydraulic structures. They are used to open or close water outlets. They play the roles of controlling water level, regulating flow and changing flow rate.