... API 5L/5CT, EN10217, EN10219, ASTM A53, ASTM A2526.Steel grade: GR.A/B, X42, X46, X52, X56 ... oil & gas transmission, building construction, water conveying, steel structure, shipbuilding.....13.Package: small sizes in bundled packed ... by steel strips , and big sizes in loose14.Brand: ... costomer's requirement API hot rolled /cold drawn welded carbon steel pipe