Hainan hollow winding pipe is a kind of structural wall pipe made of high density polyethylene (HDPE) by hot winding process. The pipe is suitable for municipal drainage, building outdoor drainage, buried farmland drainage, industrial sewage, road drainage, sewage treatment plant, stadium plaza engineering drainage, electrical and telecommunications engineering, etc. As the hollow wall winding pipe is a chemical building material, it is of great significance to save energy, reduce pollution and protect the environment.

Hainan hollow winding pipe has fully absorbed and digested the technology of Germany, Finland and Poland. It has high scientific and technological content and has reached and exceeded the PRENl 3476-1 standard. HDPE winding pipe is a new type of acid resistant, anti-corrosion, compression resistant, non-toxic green environmental protection pipe. It is an environmental protection and energy-saving high-tech product with a service life of more than 50 years. It is convenient for product transportation, construction and low overall project cost, It is the most ideal replacement product for cement pipe, cast iron pipe, glass pipe, PVC - U corrugated pipe, etc. HDPE winding pipe has fully absorbed and digested the technology of Germany, Finland and Poland, and has high scientific and technological content. Now it is synchronized with the world's advanced technology, reaching and exceeding the PRENl 3476-1 standard. With imported high-quality high-density polyethylene as the main raw material, the product is extruded from the guide pipe by the first extruder, and then twined with the melt extruded by the second extruder through the hot forming machine.