Galvanized steel drainage pipe, as the name suggests, is a drainage pipe made by galvanizing the surface of ordinary steel pipes. Galvanized steel pipes are mainly divided into two types: cold galvanized steel pipes and hot-dip galvanized steel pipes. Cold galvanized steel pipes have been banned by the country due to their poor corrosion resistance; Hot dip galvanized steel pipes are widely used in building water supply and drainage systems due to their advantages such as uniform coating, strong adhesion, and long service life.

Large diameter drainage steel pipes have a larger inner diameter, which can effectively increase drainage capacity and flow rate, meeting the needs of high flow drainage. Made of high-quality steel, it has high strength and rigidity, and can withstand large pressures and loads, ensuring the stable operation of the drainage system. After anti-corrosion treatment (such as coating with epoxy coal tar, hot-dip galvanizing, etc.), it can effectively resist corrosion and chemical erosion, and extend its service life. Large diameter drainage steel pipes are usually installed using spiral structures or flange connections, with tight connections and convenient installation.