OD 4-1/2"~13 3/8"; 
Grade: J55, N80, L80, P110, Q125... 
(Casing, Pipe, Oil Pipe, oil tube) 

1) Sizes: OD 4-1/2"~13 3/8 " 
2) Grade: H40, J55, K55, N80, M65, L80, C90, C95, T95, p110 
3) Type of End Finish:Plain End, LTC, STC, BTC 
4) Length: R1, R2, R3 
5) Standard: API SPEC 5CT 
6) Application: 
Packing: bundle or bulk 
(Casing, Pipe, Oil Pipe, oil tube)