1.natural gas pipe 2.material:ST37,ST35.8,ST44,ST45,ST52;Standard:DIN1626,1629,1630 ... development of product technolog orientation.Seamless Pipe Typenatural gas pipeSize1/2"-36"Wall thicknessSch5-Sch160XXSStandardDIN1626,1629,1630, ... foodstuff, papermaking, chemical, medical equipment, boiler heat, exchanger, gas metallurgy, etc.Min Order Quantity1 tonsDelivery Time25 days after conformedQualityFirst ...