Place of Origin : Hengshui,China

Spiral rib pipe can solve your storm water problems with the improved hydraulics
Spiral rib pipe is our innovative flexible metal pipe that combines the proven strength of corrugated metal pipe with the flow capacity of a smooth inner wall. That is to say the product has two layers: the first layer is a smooth interior corrugated steel pipe and the second layer is a smooth steel liner providing for improved hydraulics. It is also called smooth wall spiral rib pipe or double wall corrugated st