Anticorrosion And Hard Wearing Tubing And Casing

anticorosion and hard wearing tube and casingcasing:SpecificationsSteel    gradeThreadRemarks139.7×7.72J55S、L 139.7×7.72N80—1class、P110L 244.48×8.94J55S、L 244.48×10.03J55S、L 244.48×10.03L80—1class、N80—1classL 244.48×11.05L80—1class、N80—1class、P110L Note ：S——Short thread   L——Long  threadoil tube：specificationsSteel    gradeThreadRemarks26.67×2.87J55、N80-1PNU 26.67×3.91J55、N80-1PU 33.4×3.38J55、N80-1PNUI 33.4×4.55J55、N80-1PU 60.32×4.24J55、N80-1PN 60.32×4.83J55、N80-1PNU 60.32×6.45N80-1PNU 73.02×5.51J55、N80-1PN 73.02×7.01N80-1PNU 73.02×7.82N80-1PNU 88.90×5.49J55、N80-1PN 88.90×6.45J55、N80-1PNU 88.90×7.34J55、N80-1PN 101.6×5.74J55、N80-1PN 101.6×6.65J55、N80-1PU 114.3×6.68J55、N80-1PNU Note：P—Flat  end；N—no  thickened with threaded and coupling；U—Thickened with threaded and coupling；I—Integral coupling