1.seamless steel pipe 2.material:material:ST37,ST35.8,ST44,ST45,ST52;Standard:DIN1626,1629,1630,17175,2391, ... thicknessSch5-Sch160XXSStandardDIN1626,1629,1630,17175,2391,2448MaterialST37,ST35.8,ST44,ST45,ST52Packagingpainting black, pipe cap, steel strips bundled.Applications range petroleum, construction ,shipbuilding ...