铸铁镶铜方形闸门，又称铸铁方闸门，主要用于给排水、防洪、水利、水电工程，用于切断、清除水流或起到调节水位的作用，符合生产的一般标准。采用独特的外弧设计，结构合理，受力均匀，由灰铸铁或球墨铸铁、不锈钢制成，止水密封面镶铜条或橡胶，经过精密加工，实现了平面接触密封，密封性能良好。当止水性能下降时，可通过调整楔形装置来解决。
Cast iron copper inlaid square gate, also known as cast iron square gate, is mainly used in water supply and drainage, flood control, water conservancy, hydropower projects, used to cut off, clear water flow or play a role in regulating water level, in line with the general production standards. It is made of gray cast iron or nodular cast iron and stainless steel. The sealing surface is inlaid with copper strip or rubber. After precision processing, the plane contact seal is realized and the sealing performance is good. When the water stop performance decreases, the wedge device can be adjusted to solve the problem.