20 carbon cold drawn pipe

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Standard,Application of Seamless Steel Pipe S.N.Standards Application 1 ASTM A53 Seamless and Welded Black and Hot-dipped Galvanized Steel Pipe 2 ASTM A106 Seamless Carbon Steel Pipe for High-Temperature Service 3 ASTM A179 Seamless Cold-Drawn Low-Carbon Steel Heat-Exchanger and Condenser Tubes 4 ASTM A192 Seamless Carbon Steel Boiler Tubes GB 20 carbon cold drawn pipeT 3094 20 Cold Drawn Shaped Steel Tubes,ASTM A500 GB 20 carbon cold drawn pipeT 3094 20 Cold Drawn Shaped Steel Tubes,ASTM A500 20 carbon cold drawn pipeA500M,10,20,35,45,Q345,Shaped Steel Tube,Allotype Steel Pipes,Agricultre Drive Shaft Triangular Steel Tube,Agricultural Complete Pto Shaft Tubing,Agricultural Drive Shaft Steel Tube,Agriculture Tractor Pto Shaft Lemon Tube,Lemon tubing,Agriculture Pto Polygon Steel Tube,Oval Steel Tube,D shaped steel tube,plum blossom steel