... , If your pipe use for liquid transport or piling pipe,spiral welded pipe will be best choice,with cheapest price and ... a position to manufacture and export S355JR spiral piling steel tube tube: ASTM A252 spiral tube SSAW welded steel tube Standard: ASTM ... : 4-25mm Length: 12-20Meter We supply good quality piling tubes, not only Gr1, Gr2, Gr3, but also S355,,S460, X65 ...