... Pipe/Square Steel Tube/Galvanized Hollow SectionProduct NameGalvanized Square Pipe/Square Steel Tube/Galvanized Hollow ... StandardASTM, ASME, DIN,GB,JIS,ASNI,BSUsageUsed For Structure, Accessorize And ConstructionEndsUsually Plain ,But ... and Hot RolledTypeWeldedWelded Line TypeLongitudinalSection ShapeSquareInspectionWith Hydraulic Testing, Eddy Current , Infrared TestPackageBags, Bundle, In Bulk, ...