Pressure: 150Lb, 300Lb, 600Lb, 900Lb or PN 2.0MPa~PN 15.0MPa or JIS 10K, 20K. Nominal diameters: 2"~ 24"or DN50~DN600 Design & manufacture standard: API6D, API600.Face to face dimensions: ANSI/ASME B16.10.Flange connection: ANSI/ASME B16.5 for NPS24,ASME B16.47A/MSS SP-44 for NPS>24.Butt-welding end dimensions: ANSI/ASME B16.25.Inspection & test standard: API6D, API598.Pressure: 150Lb, 300Lb, ...