Qingdao brilliant plastic machinery Co.,Ltd.is engaged in large diameter HDPE hollow wind pipe production line. We are one of the earliest manufacturers engaged in Large diameter HDPE Hollow Wind pipe production line Company could produce various types ofPlanet-screw extruderthe Large diameter HDPE Hollow Wind pipe production line are sold all over the country and many overseas countries and regions winning preference of customers from different regions; Large diameter HDPE Hollow Wind pipe production line Brief introduction of finished pipe: Recently, in the country, drainage pipes almost adopt cement ones. Be cause its chemical characteristics is not steady, its joint is not tight, is easy to leak and pollutes the environment .It has become a main pollution for citizens of modern cities. The cast pipes has shortcoming of construction fee is high, not easy to be built and others. Now it has been forbidden. In recent years, plastics pipe has taken the place of cement ones.