Steel grade: H40, J55, K55, M65, N80 type 1, N80 type Q, L80 type 1, R95, C90, T95, C110, P110, Q125, Q135.
Requirement level: PSL-1, PSL-2, PSL-3.
Thread type: - LС (short thread);
- SC (long thread);
- BC (shouldered buttress-thread coupling);
- ОТТМ (buttress-thread coupling);
- ОТТГ (buttress-thread coupling with metal-to-metal seal assembly).