... Non-secondaryApplication: Structure PipeTechnique: ERWCertification: ISO9001, CESurface Treatment: GalvanizedSpecial Pipe: EMT PipeAlloy Or Not: Non-alloyquality: superior qualityPackaging & DeliveryPackaging ... your T/T or L/CSpecificationsHot dipped Galvanized steel pipe Outer diameter : 21.3-219mm Wall thickness : ... Q195,Q215,Q235,Q345, GR.A, GR.B, API J55, API K55, 10#,20#, etc.Length: 3-12m or ...