... .Application: serves as walls of a well .Packing: bundle or bulk Material grade: J55, K55, N80, L80, T95, , 5" oil casing pipeCasing ... .Application: serves as walls of a well .Packing: bundle or bulk Material grade: J55, K55, N80, L80, T95, 7" casing pipeCasing and ... .Application: serves as walls of a well .Packing: bundle or bulk Material grade: J55, K55, N80, L80, T95, 10 3/4" casingCasing ...