... 20#, 35#, 45#, 16MN(Q345B)ASTM A53 GR. A , GR. B, GR. CASTM A106 GR. A , GR. B, GR. CDIN 162 St 37.0, St 44 ... seamless steel pipe China GBASTMDIN 1717510#ASTM A106 Gr.AASTM A53 Gr.AASTM A179-CASTM A214-CASTM A192St 37-2St ... 35.8St 35.420#ASTM A106 Gr.BASTM A53 Gr.BASTM A315 Gr.BASTM A210-A-1St 42St 4516MnASTM A210- ... ,30,40,60,STD XS,80ASTM A106/API 5L GR.B5.8m,6m,ASTM A53Gr.B5m to 12m randomPipe ...