1.Standard: BS,JIS,GB,ASME,ANSI,DIN 2.Grade:API J55,API K55,API L80,API P110 3.Out Dia casing and tubingStandard: BS,JIS ... ,GB,ASME,ANSI,DINGrade:API J55,API K55,API L80,API P110Out Diameter:2 3/8"-20"Thickness:lb/ft ... -10-69298861 TOPENSEA... Supplying the best... with the best Supply API casing and tubing