1.Certificate: API, ISO certificate 2 ... : 5.8m - 14.3m Carbon steel, and alloy steelStandardASTM/DIN/GB/JIS/BSSizeDN15-1000mmThickness0.8-27.4mm/Sch40-160 ... °SurfaceAccording to your requirementTypesElbow,reducer,tee,flange,steel pipe,bend,steelbar..EndBeveled or square cut ... 6100~12800850002Oil casing PipeAPI5CT-2005J55,N80,L80-1,C90,T95,P110,Q125,9Cr,13Cr114.3 ... ×4000~120009000 low alloy steel pipe st52