Code Dk 021: 2015 - 44160000-9 - Highways, Pipelines, Pipes, Casing Pipes, Tubing And Related Products (Steel Pipes Pre-Insulated With Foamed Polyurethane In Polyethylene Protective Sheath Ppu-P, Steel Pipes Pre-Insulated With Foamed Polyurethane In Metal Protective... (EXPIRED)