1.OD:219-3600mm,WT:6-30mm 2.Standard:API SPEC 2B,API 5L 3.Material:X42-X70,Gr.B,Q345,Q235 4 ... .StandardSY/T5037,SY/T5040,ASTMA252,EN10217,EN10219,GB/T9711.1,API 5L3.Outer Diameter219-3600mm4.Wall Thickness6mm—30 mm 5.Length3 ... , Spain, Italy, France, England, Belgium, etc13.CertificatesAPI 5L PSL1,PSL2 , API 5CT, ISO ,CE API 5L Carbon Welding Steel Pipe