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...