tube 1.2 7/8"*5.51mm 6.4-6.5lb/ft 2.API Certificate No.:5CT-0365 3.J55,K55,N80,L80,P110,Q125 4.STC,LTC,BTC,VAM,NUE,EUE TUBE Oil casing and tube are vital to the oilfield. 1.O.D: 60.3mm144.3mm 2.Grade:J55 N80 P110 C95 Q125 ect 3.Thread :NU EU STC LTC BTC 4.Standard: API 5CT...Steel gradeMin. Yield Strength(MPa)Max.Yield Strength(MPa)Min.Tensile Strength(MPa)Size (in)Connect Strength(N) ...