Carbon steel Seamless pipe API 5L Gr.B 2.Size:1/4"-812mm 3. ... ,ISO ASME B36.10 Carbon steel Seamless pipe API 5L Gr.B 1.Product:Carbon steel seamless pipe2.OD: 21.3mm--813mm (1 ... ,1025,1026,1030,1035,1040,1045,1050,1518,1524,15414118, 4130,4135,4137 P195TR1,P195TR2,P235TR1,P235TR2,P265TR1 T265TR2,P195GH,P235GH ...