MRP pipe

[ercanbaser]

Is there anybody who knows about MRP (metal reinforced corrugated pipe)? The pipe is like double wall HDPE corrugated pipe but there is a metal layer inside the pipe.

ASTM code : ASTM F2435 - 05


I want to know about your experience and views (positive or negative) and the advantages of these pipes with respect to DWC (double wall corrugated) pipe.

Thanks...