Detailed Product Description black steel pipewelded black steel pipe black pipeNamewelded pipeOuter diameter1"-20"Wall thickness2. ... requirementStandardsGB/T3091 ASTM A,GB/T9711.1-99 ASTM B,API 5L,API5CTMaterialsQ235,Q345,X42,H40,J55Usage:Widely used ... electronics etc..packingTo be packed in bundles, wrapped with steel stripCertifiacateOur company has got the API5L, API5CT,PED ,AD2000,ISO9001,ISO14001 ...