ProductODW.T.StandardLengthMaterial Spiral Steel pipe 8’’ to100'‘ SCH20,30,40,60,80,100,120,140,160,XS,XXS,STD,SY/T5037-2000,GB/T9711.1-1997,API5L,ASTM A106,ASTM A53,EN10219 5.8m,6m,11.8m,12m5m to 12m randomST37, ST52 , ST45,10#, 20#, 35#, 45# 16Mn, Q235Q195,Q215, Q345 Longitudinal Steel Pipe 16’’ to..