Grade:10#, A53(A,B), St37, St42, Q235, Q345, Q195, Q215Standard:BS 1387, BS EN10219, ASTM A106-2006, ASTM A53Thickness:0.2-40mmOuter Diameter:10-1020mmSurface treatment:black painting, galvanised,3PE and so onSection shape:RoundPayment:TT or LC at sight Delivery time: 30-45 days after receive prepayment or copy of LC