... T5,T9,T11,T12,T22,T23,T91;Q235, Q195, Q345, 20#, A53(A,B), 10#, 16Mn, A106(B,C), 45#, API ... .Surface Treatment3PE, 3PP,EP and Black PaintingApplicationFluid Pipe, Boiler Pipe, Drill Pipe, Hydraulic Pipe, Gas Pipe, Chemical Fertilizer Pipe, Structure PipePackaging Detailin wooden cases, nylon bags ...