The performance targets of Tubing model L80 and N80 our company saled were achieved API 5CT standard requirements .
   
With material of high-quality Proved by used for many years and the scientific experiments ,the tubing casing model L80 and N80 our company saled were made of after a multi-channel precision machining processes, together with strict quality control procedures.
Standard: API 5CT
1) Sizes: OD 2 7/8"(73.03mm)
2) Grade: L80, N80
3) Standard: API 5CT, API 5B