Awọn ajohunše Apẹrẹ & iṣelọpọ: API 609, ASME B16.34 Ayẹwo idanwo: API 598 Awọn iwọn oju si oju: ANSI 609 Iwọn ipari Flanged: ASME B16.5, ASME B16.47A, ASME B16.47B, MSS SP-44, API 605 Apọju-welded opin apa miran: ASME B16.25