Double-wall corrugated communication pipe

In the early eighties, Germany successfully developed a new plastic pipe.
The structural design of new and reasonable with a smooth wavy wall and outer wall of hollow composite structure with a good ability to withstand external loads, with high strength, light weight, wall smooth, impact and corrosion resistance, easy construction and low cost . Products are Flaring socket, using ring connection, can prevent the impact of thermal expansion and contraction; construction under normal circumstances do not need to have protection layer; light weight, long life, easy construction, transportation and construction costs is low, a small amount of earth excavation, we can greatly shorten the construction period. For buried power cable protection tube, even if the tube cables overload or short circuit, the resulting temperature has no bad impact to the products.
Double-wall corrugated communication pipe