... .Use:water supply,chemical,petroleum industry 1.NameStainless steel welding neck flange2.Standard:GB14976-2002, GB13296-2007, JIS, AISI, DIN, BS3.Size ... , 304L, 304Stanndard:ANSI,BS,DIN,UNI,JIS,GN,etcType:Welding neck flangeProduct name: Stainless Steel Flanges1. Size: 1/2" - 40" ( ... mm). 2. Standards: ANSI, BS, DIN, UNI, JIS, GB, Non-standard etc.or as customers' drawings for special use. 3. Materials ...