Large-diameter Thick-wall straight-seam Longitudinally Submerged Arc Welded carbon steel pipes (LSAW Pipes), and they are mainly used for: 1) Petrochemicals: For the Crude oil, petrochemical raw material & products transmission and the pipelines in the oil fields. 2) Natural Gas: Onshore & Offshore long pipeline; Gas station transportation; pipelines in the gas fields and cities. 3) Structural Pipe: piles of wharf; structural pipes for bridges and tall buildings; offshore flat. 4) Others: water transportation, offshore suction & drain pipeline Product Name: LSAW steel pipes Forming Mode: JCOE Materials: API 5L and other materials with requirements from our customers; Grade: X80 or/and lower, Diameter: ª¦406-1524mm, Wall thickness: 6-40mm, Unit length: 8-12m Nake pipe