... 3.Use:water supply,chemical,petroleum industry 1.NameStainless steel welding neck flange2.Standard:GB14976-2002, GB13296-2007, JIS, AISI, DIN ... -secondary10.Alloy Or Not :Non-alloy11.Technique:Forged or casting12.Certification:ISO,QMS,DNV,KR,ABS,TUV,Lloyd's Register,BV ... , 316, 304L, 304Stanndard:ANSI,BS,DIN,UNI,JIS,GN,etcType:Welding neck flangeProduct name: Stainless Steel Flanges1. Size: 1/2" - 40 ...