UNI stainless steel flang Size: from 1/2 to 200 inch (DN15- ... , DIN, BS, JIS, EN, JB, GB, HG, UNI, API UNI stainless steel flang Technics: Forged Size: from 1/2 to 200 ... Flange, Lwnrf (Ff), Thrf (Ff) Facing Method: rust preventing oil, spray paint (black, yellow), hot galvanization, cold galvanization or colored electroplate ...