Carbon Steel Welded Steel Pipe

1. American standard:ASTM A 106, A53,API 5L ,5CT, Chinese standard£ºGB/T3091,GB/T9711, ERW high frequency welded pipe/LSAW / SSAW,
        Specification: ERW O.D: 2"-28",60.3-711.2mm;
         LSAW(JCOE Mill): O.D: 16"-40",406.4-1016mm;
          SSAW: O.D: 8"-120",219.1-3048mm;
2.British standard, ERW high frequency welded pipe BS 1387:1985,Specification: O.D: /12"-18",21.4-457.2mm ;

3. Standard for Square& rectangle steel pipe: ASTM A500, JIS G 3466, DIN EN 10219/10210,GB/T3094-2000, GB/T 6728-2002 ,
4. Specification: Square steel pipe O.D:100*100mm-400*400mm  rectangle steel pipe,O.D:100*110mm-400-600mm, W.T:6-25mm;

And other relevant: EN10217-1,EN 10255,GB/T13793,JIS 3444/3452,DIN 1626/2395.