... )WT: SCH5-SCH160 3)Standard:A106 GRB, A53 GRB, API 5L,GRB, ASTM A53 Carbon steel seamless pipe Company NameShijiazhuang Beihai Pipe CO.,LTDBusiness ... .T.:SCH10-XXSLength:5-12mBSQ195,Q235,Q215,Q345ASTMA283-D,A135-A,A53-A,A106-A,A179-C,A214-C,A192,A226,A315-B ... ,A53-B,A178-C,A210-A-1,A210-CDINSt33,St37,St37-2,St35.8,St35 ...