1.Leading Professional Manufacturer 2.Standard:ASME,ANSI,BS,DIN,JIS 3.Quality control:ISO 4.High quality&Co titanium flange1. ANSI flangeStandard : ANSI ... , Class 300 , Class 600 , Class 900 , Class 1500 , Class 2500Size : 1/2" NB to 48" NB2. DIN flangeStandard : DIN 2527 , DIN ... : PN2.5 , PN6 , PN10 , PN16 , PN 25 , PN40 , PN63 , PN100Size : 1/2" - 48"6. Gost flangeType : Plate flanges( GOST 12820-80 ...