... pipe 1. WT: 10-80mm, OD:273-426mm 2. Certificate: API, ISO, KR 3. Market:worldwide 65mm Wall Thickness carbon seamless ... Seamless Steel PipeSize273-426mmThickness10-80mmLengthlength: 5-12mStandardASME B36. 10M-1996,API 5LJIS G3461, JIS G3456, J IS G3452,JIS G3454,JIS ... .2,St35.4/8,St42,St45,St52,St52.4A53B, A106B, API 5L B,X42,X46,X52,X60, X65STP G38,STP G42,STPT42 ...