Standards compliance
Design and Manufacture: API608, API6D, BS5351
Face to face(end to end): ANSI B16.10, API6D, JIS B2002
Flanged connection: ANSI B16.5, JISB2212-2214
Fire-safe: API607, API6 FA
Butt welded end: ANSI B16.25
Test and inspection: API598, API6D, JIS B2003