Q245B Q345B 16Mn Hot Finished / Cold Finished ERW Carbon Steel Pipe For Fluid Quick Detail: Grade:20#,16Mn,A53(A,B),A106(B,C),A210,A178-C,St52,St42,St...
Q245B Q345B 16Mn Hot Finished / Cold Finished ERW Carbon Steel Pipe For Fluid Quick Detail: Grade:20#,16Mn,A53(A,B),A106(B,C),A210,A178-C,St52,St42,St...