... orientation.Seamless Pipe Typenatural gas pipeSize1/2"-36"Wall thicknessSch5-Sch160XXSStandardDIN1626,1629,1630,17175,2391,2448MaterialST37,ST35.8,ST44,ST45,ST52Packagingpainting black, pipe cap ... , steel strips bundled.Applications range petroleum, construction ,shipbuilding,smelting, aviation, power, foodstuff, papermaking, chemical, medical equipment, boiler heat, exchanger, gas ...