... , 1500Lbs, 2500Lbs, /PN6,PN10,PN16,PN20,PN25,PN40/ Class A, B, C, D, EstandardASME B16.5, ASME B16.47, ASME B16.36 ... Boss Flanges, Slip on Boss Flanges, Blind Flanges TYPES: Table: D, E, F, H SIZE: 1/2" NB TO 48"NB5 ... neck Flanges(GOST12821-80); Steel Butt-Welded Flanges GOST12821-80Pressure Class:PN=0.6--PN10,0 (100 /2)SIZE: 1/2 ...