high quality , long usage and reasonable price Name: stainless steel flange Wall thickness:sch5s-xxs Certificate:ISO90011) Standard: ANSI. DIN, EN1092-1, JIS, BS4504, UNI. )2) Type: WN, SO, PL, BL, THRD, LAP-JOINT, SW. 3) Process: Free Forging, Mould Forging, Upset Forging....4)DN15mm~DN3000mm 5)carbon steel, alloy steel, stainless steel 6)Slip-on, Welding Neck, Blind, Threades ,Lap-joint, Socket ...