... .Use:water supply,chemical,petroleum industry 1.NameStainless steel welding neck flange2.Standard:GB14976-2002, GB13296-2007, JIS, AISI, ... .Reasonable price.3.Excellent quality.4.Various size.Stainless steel flanges, pipe fittingsGrade: 316L, 316, 304L, 304Stanndard:ANSI,BS, ... DIN,UNI,JIS,GN,etcType:Welding neck flangeProduct name: Stainless Steel Flanges1. Size: 1/2" - 40 ...