API 5L GrB heat insulation steel pipe,ASME B36.10 OD:10.3 ... :6m,random length Application:gas pipe API 5L GrB heat insulation steel pipe,ASME B36.10OD:10.3-920mmWT: ... ,PED,ISO certificate,DIN,JIS,BS,GOST standardsurface treatment:3lpe coating/black color/varnishMaterial: API 5L Gr.B, ASTM A106 ... :wooden box,as buyer's requirement API 5L GrB heat insulation steel pipe,API,PED,ISO certificate,ASME B36. ...