... steel ,cast steelSize: 1/2-48 inch, DN15-1200 Other Standard: ANSI,JIS, DIN,UNI, BS 1) Size: 1/2-48 inch (DN15-DN1200)2) Standard: ANSI, JIS ... , RST37.2, S235, C22.8, F304, F304L, F316, F316L, 316Ti5) Surface Treat: Anti-rust Oil, Transparent/ Yellow/Black Paint, Zinc, Hot dipped ... you to visit our factory, and establish long term cooperation. hot sales galvanized forged flange with competitive price