API 5CT well casing steel pipes, J55 K55 N80 L80 oil casing pipes

astm a53 GrB steel pipes
ASTM A53 ERW Pipes, GR.B, OD 660mm STD oil line pipes
December 12, 2016
api5l seamless pipe
API 5L carbon steel pipes, X60, SCH30,RDL line pipe
December 14, 2016