Plastic steel winding pipe is easy to install and light in weight, and does not need large lifting equipment during installation. Good axial flexibility, low requirements for flatness and firmness of trench bottom during laying, and strong ability to withstand abnormal stress caused by improper installation Plastic steel winding pipe (SRWPE) is made of steel plastic composite profiled strip by spiral winding welding (extrusion welding on the lap surface), its inner wall is smooth and flat, and the specification is DN200 - DN3000mm. This kind of pipe has the advantages of corrosion resistance, light weight, simple installation, large flow capacity, long service life (50 years), etc. It can replace the pipes made of high-energy materials (cement, cast iron, ceramics, etc.) Type preserving green products.