... water supply,chemical,petroleum industry 1.NameStainless steel welding neck flange2.Standard:GB14976-2002, GB13296-2007 ... BS10: Table D, E, F, HJIS: 5K,10K, 16K, 20K, 30K5.Section Shape:Welding neck Flange6 ... 304Stanndard:ANSI,BS,DIN,UNI,JIS,GN,etcType:Welding neck flangeProduct name: Stainless Steel Flanges1. Size: ... , 10K, 16K and 20K 5. Type: Welding Neck6. Face treatment: Transparent oil, rust-proof ...