the carbon steel pipes with high quality and reasonable price,we have passed the Certificate of ISO9002 and PED. Features :carbon steel pipe Material :carbon steel Size:1/2-48(DN15-DN600) Standard:ANSI,ASTM,MSS,JIS,DIN,ENTypepipeMaterial:CarbonSteelA234,ST35.8,ST37 A105, A106B, alloy steeStandard:ASME,ASTM,ANSI,DIN,GB,B16.9,JISNominalDiameterDN15~DN600WallThicknessSCH20,SCH40,SCH80,XS,STDSize:1/2 ...