ASTM A106 Br.B SEAMLESS PIPE Size:35-960mm WT:5-60mm length:5.8-20m Material:A53,A106,Q235,Q345,ST35,ST37 MATERIAL ... ASTM A53, ASTM A106,,10#, 20#, 45#, 16Mn, C20, C45, St52 ... , GB8162, GB8163, GB9711.1-1997, GB3087STANDARD ASTM, API, JIS,DIN ...