... .Use:water supply,chemical,petroleum industry 1.NameStainless steel welding neck flange2.Standard:GB14976-2002, GB13296-2007, JIS, AISI, DIN, BS3 ... , F, HJIS: 5K,10K, 16K, 20K, 30K5.Section Shape:Welding neck Flange6.Grade:304, 304L, 310S, 321,321H, 316, TP316L, 316L ... , 304L, 304Stanndard:ANSI,BS,DIN,UNI,JIS,GN,etcType:Welding neck flangeProduct name: Stainless Steel Flanges1. Size: 1/2" - 40" (DN15 ...