Standard: API 5L
Gread:A B X42 X46 X52 X60 X65 X70 X80 .
Lash or as your demand.
Standard: API 5CT
Gread : J55 K55 L80 N80 C90 P110.
Lash or as your demand.
Standard:API 5CT
Gread: J55 K55 L80 N80 C90 C95 P110.
Packing as per your demand or lash.