PVC-U drainage system with corrugated walls with profiled internal and external surfaces (Type R1 according to DIN 4262-1), with nominal diameters from DN/OD 50 to DN/OD 160, made of inflated poly (vinyl chloride) (PVC- U). Drainage pipework corrugated with PVC-U, consisting of:
The drainage system is designed to dewater meadows and arable land, protect buildings from moisture and pressure from water entering the ground in the immediate vicinity of foundations and walls.