Conveying gas, water, and oil in the pertroleum and natural gas industries.
Tubing and Casing for the petroleum and natrual gas industries.

Standard:
API SPEC 5L - American petroleum institute standards
GB/T9711.2 -- China national standards
USES: Used in oil and gas industry the oxygen and water, oil pipelines
Main production steel grades: B, X42, X52, X60 X70, X65

Delivery Condition:
Annealed, Normalized, Normalized and termpered.

Surface:
Oil-DIP, Shot Blasting, Varnish etc.