Outer Diameter: 2.375 - 16.00 inch Thickness: 1.8 - 25.4 mm Standard: GB, ASTM, API Outer Diameter 2.375 - 16.00 inchThickness 1.8 - 25.4 mmStandard GB, ASTM, APIGrade 20#, A53(A,B), A106(B,C), Q345, Q195Packaging In bundles, seaworthy wooden cases, wooden or steel pallet plastic bag or as per customers requirement Oil pipeline