tube 1.material:ST37,ST35.8,ST44,ST45,ST52;Standard:DIN1626,1629,1630,17175,2391, ... /2"-32"Wall thicknessSch5-Sch160XXSStandardDIN1626,1629,1630,17175,2391,2448MaterialST37,ST35.8,ST44,ST45,ST52Packaging pipe cap, steel strips bundled.Applications ...