... ''-48'' 2)WT: SCH5-SCH160 3)Standard:A106 GRB, A53 GRB, API 5L,GRB, ASTM A53 Carbon steel seamless pipe Company NameShijiazhuang Beihai Pipe CO ... 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, ... "Length:R1,R2,R3Thread:Plain end,STC,BTC,LTC ASTM A53 Carbon steel seamless pipe