... :2mm-80mm Length:6m,random length Application:chemical fertilizer pipe API 5L heat insulation steel pipeOD:10.3mm-914.4mmWT:2mm-80mmLength:6m,8m ... /gas pipe,boiler pipe etc.Material: ASTM A106 Gr.A/B/C, ASTM A335,X42,X56,X60,X70,TP304L,TP316L, P91,35CrMo API 5L ... heat insulation steel pipe,API,PED,ISO certificate,ASME B16.9