... size. 5. Best service 1.NameStainless steel flanges 2.Standard: GB14976-2002, GB13296-2007, JIS, AISI, DIN, EN3.Size: 1/2" ... ND100 (DIN), PN6-PN100 (UNI, EN1092-1), 5K-30K (JIS), 150lbs-2500lbs (ANSI)5.Section Shape:RF, FF, MF, ... MFM, TG, RTJ etc.6.Grade:304,304L, 310S, 321, 321H, 316, TP316L, 316L ... 3.Excellent quality.4.Various size. AISI,ASTM,JIS,DIN,EN Stainless steel flange