GI pipe material: Q195,Q235,Q345,20#,45# etc. OD: 10-275MM W.T.: 0.5-12.0mm length: as your demaned Commoditysteel pipesMaterialQ195-Q345, GR.B,20#,45# etc.SpecificationERWLength3-17m or as your demandTreatmentgalvanized,oiled, painted black or as per customers' requestCertificatesGB3091-2001, ASTM A53, ASTM A106 EN10216,EN10219Manufacture Technique high frequency welded Packagingin bundles or in ...