Liansu is engaged in the supply of hdpe double wall corrugated pipe which are manufactured according to the international standards. Some of the characteristics are given below:

* Smooth innerwall, lower flow resistance than concrete pipe.
* Strong corrosion resistance.
* Good abrasive resistance and longer life time.
* Easy installation
* light weight and low requirements.
* Low consumption of material and low general cost.

Its main application areas are:

* Municipal engineering buried rainwater, sewage discharge system for residential areas.
* Agricultural irrigation flooded field drainage.
* Conveying system for sewage plant.
* Pre buried piping under highway.
* Power telecommunication cable conduit.
* Integral processing of pipe inspection chamber.