65mm Wall Thickness carbon seamless steel pipe 1. WT: 10-80mm, OD:273-426mm 2. Certificate: ... 3. Market:worldwide 65mm Wall Thickness carbon seamless steel pipe Key wordsSteel PipeNameCarbon Seamless Steel PipeSize273-426mmThickness10-80mmLengthlength: 5- ... .2,St35.4/8,St42,St45,St52,St52.4A53B, A106B, API 5L B,X42,X46,X52,X60, X65STP G38 ... cold bending 65mm Wall Thickness carbon seamless steel pipe