Applicaton: Tubing is used to exacting petroleum and natural gas from a well .

Casing serves as walls of a well .

Material: according to the requirment of the customers

Specification: according to the requirment of the customers

1)ODmm: 114.3  127  139.7   168.28

  Wall thickness: 5.21mm to 12.06mm

Outer diameter	2 3/8-20
Length	5m-12m

2)Standard: GB/T 8162, GB/T8163, DIN1629, EN 10297, ASTM A106, A53 ,API 5L,API 5CT

3), Grade: J55,K55,N80,P110, ST35.4, ST35.8, ST52.0, ST42.2, ST45.8, and ST45.4