... price.3.Excellent quality.4.Various size.Stainless steel flanges, pipe fittingsGrade: 316L, 316, 304L, 304Stanndard:ANSI,BS,DIN,UNI,JIS ... , 900, 1500 and 2500 DIN PN 6, PN 10, PN16, PN25, PN40 and PN64 JIS 5K, 10K, 16K and 20K 5 ... , medical equipment, piping installation link Stainless Steel Welding Neck Flange-Pipe connecting parts