We are specialized in 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