API 5L heat insulation steel pipe OD:10.3mm-914.4mm WT: ... -80mm Length:6m,random length Application:chemical fertilizer pipe API 5L heat insulation steel pipeOD:10.3mm-914.4mmWT:2mm-80mmLength ... A335,X42,X56,X60,X70,TP304L,TP316L, P91,35CrMo API 5L heat insulation steel pipe,API,PED,ISO certificate,ASME B16 ...