... heat insulation steel pipe OD:10.3mm-914.4mm WT:2mm-80mm Length:6m,random length Application:chemical fertilizer pipe API ... 5L heat insulation steel pipeOD:10.3mm-914.4mmWT:2mm-80mmLength:6m,8m,10m,15m,random lengthApplication:chemical fertilizer pipe ... heat insulation steel pipe,API,PED,ISO certificate,ASME B16.9