The U-shaped steel belt composite PE material is used for the steel belt corrugated pipe, so that the ring stiffness of the pipe can be greatly improved without increasing the cost, and the strength of the pipe can be greatly improved compared with the winding pipe and the carat pipe under the same weight. It can solve a series of problems such as heavy load. Large diameter pipes have more obvious advantages. The diameter of production pipes ranges from DN300mm to DN2400mm, and the ring stiffness is kept above 8KN/m2, which is lighter and stronger than cement pipes and other plastic pipes.

The surface of the steel strip is specially pretreated to enhance the corrosion resistance of the steel and the adhesion between the steel and plastic, and improve the peel strength. The overall structure of the pipe is firm and reliable when the plastic raw materials are fully melted. The use of special materials and processes not only solves the problem of corrosion prevention of steel plates, but also solves the adhesion between steel plates and PE materials, so that the service life of pipes is the same as that of pure plastic pipes, which is guaranteed to be more than 50 years.

Electric melting connection, heat shrinking band connection, internal and external extrusion welding or combination of multiple connections can be used to ensure firm connection. Reliable connection can make the pipeline reach zero leakage.