... (alloy steel E.X.G.S) OD :2-3/8,2-7/8,3-1/2,4,4-1/2,5(inch) Upset ... pipeStandard: API 7 and API spec. 5DSpecification: O.D 2 3/8, 3 1/2, 4, 4 1/2, 5, 5 1/ ... : E75, X95, G105, S135Length:R1: 5.490-6.71R2: 8.23-9.71R3: 11.58-13.72Internal Coating: TK34, TC2000 ... mm0.3308.38 mm4-1/213.7512.2418.234.500114.3 mm0.2716.88 mm4-1/216.6014.9822.314. ... to our costomers US API 5DP certificated S135 2-3/8" Drill Pipes