front barrel flang Size: from 1/2 to 200 inch (DN15-DN6000) Standard: ANSI, ... , EN, JB, GB, HG, UNI, API CS,SS... front barrel flang Technics: Forged Size: from 1/2 to 200 inch (DN15-DN6000 ... , H Carbon Steel Flange Non Standard: According to the drawing size from 10mm to 5000mm, weight from 0.5kg to 30tons ...