Shankar Technologies (India) Pvt. Ltd. proudly associates itself with introduction of Double Wall Corrugated (DWC) Ducts / Pipe and Single Wall Corrugated(SWC) Ducts / Pipe in Asia with state-of-art Italian Technology, latest and most sophisticated in the field.Double Wall Corrugated (DWC) Ducts / Pipe and Single Wall Corrugated (SWC) Ducts / Pipe, High Density Polyethylene (HDPE) corrugated sheating ducts (Pipe) today are playing a crucial role in developing urban infrastructure with applications extending from commercial and agricultural to residential, recreational and capital improvement projects. These pipes are created by fusing twin layers of High Density Polyethylene, which are corrugated on the outside and have a glass smooth inside.STIPL for cable conduits made to protect electrical and telecommunication cables. HDPE corrugated sheeting ducts for pre-stressing & post tensioning tendons.