. Standards and Grades: ASTM A106 Grade A/B, A53 Gr A& B, St37, 10#, 20#, 45#, etc. 2. Specification: O. D. 21.3-762mm, W. T. 2.77-31mm. 3. Length: 2-12M Random 5.8M fixed 11.8M fixed 4. Bevelled/plain end or varnished to be confirmed by clients 5. Packing: Bundles, seaworthy wooden cases
