... prices and lead time,satisfactory after-sales serviceAPI 5L screw steel pipeGrades:1>J55,K55,N80,P110,L802>ASTM A106 ... DIN 1629 ST45,DIN1626 ST37,5>10#,20#,37Mn5,36Mn2VOther steel grade is available as per clients requirements.Ordinary Sizes: ... or spray marking)packing & shipment:as per customers' requirementDimensions, Mechanical properties, Chemical compositions:Refer to API 5CT or as per clients ...