Standard: API SPEC 5DP, API Spec 7-2, API RP7G, DS-1 and NS-1.
Size: OD 2 3/8” ~ 6 5/8”
Steel Grade: E75, X95,G105, S135, High-strength and sour service.
Connection: API & Premium, DS (double shoulder)
Upset style: IU, EU, IEU
Hard band: ARNCO series, DURABAND and TCS series.
Internal coating: TK series, DPC series and TC series
