Type Spiral Steel PipeSize 1/2-26inch (diameter)Wall thickness 1.8mm-30mmStandard API5L, API5CT, ASTM-A106, ASTM-A53, SY5037-2000, GB/T9711.1-1997Material X42, X52, X60, X65, X70, Q235, Q345, 10#, 20#, 45#, 12CrMo, 15CrMo, SS304, SS321Packaging Painting, Caps, Bevel (beveled edges), Bundles or as...