1. Grade: J55, k55, L80, N80, P110

2. Outer diameter: 4 1/2" - 13 3/8"

3. Wall thickness: 5. 21 - 13. 06mm

4. Length: R1, R2, R3

5. Type of threading: STC, LTC, BTC

6. Standard: API SPEC 5CT, API SPEC 5B

7. High quality, competitive price

8. Packing: Bundled