Paerewa
Hoahoa me te hanga: API 6D, API599
Tirohanga whakamatau: API 598
Nga waahanga kanohi ki te Kanohi: ASME B16.10, API 6D
Ahinga mutunga kua hangai: ASME B16.5, ASME B16.47A, ASME B16.47B, MSS SP-44, API 605
Te pito mutunga pai-Paiina: ASME B16.25