Object: Electronic Auction - Structured Tube, Double Wall In Hdpe (High Density Polyethylene), Internally Smooth And Externally Corrugated, In 6M Long Bars, Black, Pigmented With Carbon Black, With End And Bag Connection, Including Sealing Ring Fixed To The Tube, With Nominal Diameter (Dn) / Internal Diameter (Id) 1500 Mm, Complying With Abnt Nbr 21138-1, Abnt Nbr Standards 21138-3 And/Or Dnit 094/2014 And Lubricating Paste That Meets The Quantity As Requested.