Design & manufacture standard:	API6D, ANSI/ASME B16.34, BS1868. DIN, JIS
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, 600Lb, 900Lb or PN10~PN160 or JIS 10K ~ JIS 40K
Nominal diameters:	1 1/2~ 24 or DN40~DN600
Major materials:	WCB, WC1, WC6, WC9, LCC, LCB, CF8(304), CF8M(316), CF3(304L), CF3M(316L), etc.